{ "document": { "acknowledgments": [ { "summary": "This vulnerability was found during the resolution of a Cisco Technical Assistance Center (TAC) support case." } ], "category": "csaf_security_advisory", "csaf_version": "2.0", "notes": [ { "category": "summary", "title": "Summary", "text": "A vulnerability in the memory management handling for the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart.\r\n\r\nThis vulnerability is due to a logic error in memory management when a device is performing Snort 3 SSL packet inspection. An attacker could exploit this vulnerability by sending crafted SSL packets through an established connection to be parsed by the Snort 3 Detection Engine. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine unexpectedly restarts.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\n\r\n\r\nThis advisory is part of the March 2026 release of the Cisco Secure Firewall ASA, Secure FMC, and Secure FTD Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: March 2026 Semiannual Cisco Secure Firewall ASA, Secure FMC, and Secure FTD Software Security Advisory Bundled Publication [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75736\"]." }, { "category": "general", "title": "Vulnerable Products", "text": "At the time of publication, this vulnerability affected Cisco devices if they were running a vulnerable release of Cisco Secure FTD Software and the following conditions were met:\r\n\r\nSnort 3 was enabled.\r\nAn SSL policy was configured.\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.\r\n Determine the Snort Configuration on Cisco Secure FTD Software\r\nTo determine if Snort 3 is running on Cisco Secure FTD Software, see Determine the Active Snort Version that Runs on Firepower Threat Defense (FTD) [\"https://www.cisco.com/c/en/us/support/docs/security/secure-firewall-threat-defense/220415-determine-the-active-snort-version-that.html\"]. Snort 3 has to be active for this vulnerability to be exploited.\r\n Determine Cisco Secure FTD Software SSL Policy Configuration\r\nSSL decryption policies are not configured by default.\r\n\r\nDetermine Cisco Secure FTD Software SSL Policy Configuration Using the CLI\r\n\r\nTo determine whether an SSL policy is configured on a device that is running Cisco Secure FTD Software, log in to the Cisco Secure FTD Software CLI and use the show ssl-policy-config command. If the command output shows a policy, the device has an SSL policy applied and is affected by this vulnerability, as shown in the following example:\r\n\r\n\r\n> show ssl-policy-config\r\n=================[ Default Action ]=================\r\nDefault Action : Do Not Decrypt\r\n...\r\n\r\nIn the following example, no SSL policy is applied:\r\n\r\n\r\n>show ssl-policy-config\r\nSSL policy not yet applied\r\n\r\nDetermine Cisco Secure FTD Software SSL Policy Configuration for Devices Managed by Cisco Secure FDM Software\r\n\r\nTo determine whether an SSL policy is configured on a device that is managed by Cisco Secure Firepower Device Manager (FDM) Software, complete the following steps:\r\n\r\nLog in to the Cisco Secure FTD web interface.\r\nFrom the main menu, choose Policies.\r\nChoose the SSL Decryption tab.\r\nIf a Policy Name is listed, the device is affected by this vulnerability.\r\nIf SSL decryption is not enabled, the device is not affected by this vulnerability.\r\n\r\n\r\nFor detailed information about SSL decryption policies, see the SSL Decryption [\"https://www.cisco.com/c/en/us/td/docs/security/firepower/710/fdm/fptd-fdm-config-guide-710/fptd-fdm-ssl-decryption.html\"] chapter of the Cisco Firepower Threat Defense Configuration Guide for Firepower Device Manager.\r\n\r\nDetermine Cisco Secure FTD Software SSL Policy Configuration for Devices Managed by Cisco Secure FMC Software\r\n\r\nTo determine whether an SSL policy is configured on a device that is managed by Cisco Secure Firewall Management Center (FMC) Software, complete the following steps:\r\n\r\nLog in to the Cisco Secure FMC web interface.\r\nFrom the Policies menu, choose Access Control.\r\nChoose the appropriate access control policy.\r\nClick the Edit pencil icon.\r\nLook in the SSL Policy area.\r\n\r\nIf a Policy Name is listed, the device is affected by this vulnerability.\r\nIf None is listed, the device is not affected by this vulnerability.\r\n\r\n\r\nFor detailed information about SSL decryption policies, see the SSL Policies [\"https://www.cisco.com/c/en/us/td/docs/security/secure-firewall/management-center/device-config/720/management-center-device-config-72/encrypted-traffic-policies.html\"] chapter of the Cisco Secure Firewall Management Center Device Configuration Guide.\r\n\r\nDetermine Cisco FTD Software SSL Policy Configuration for Devices Managed by Cisco Defense Orchestrator\r\n\r\nTo determine whether an SSL policy is configured on a device that is managed by Cisco Defense Orchestrator, complete the following steps:\r\n\r\nLog in to the Cisco Defense Orchestrator web interface.\r\nFrom the Policies menu, choose FTD Policies.\r\nFrom the FTD Policies menu, choose Access Control.\r\nChoose the appropriate access control policy.\r\nClick the Edit pencil icon.\r\nLook in the Decryption Policy area.\r\nIf a Policy Name is listed, the device is affected by this vulnerability.\r\nIf None is listed, the device is not affected by this vulnerability.\r\n\r\n\r\nFor detailed information about devices that are managed by Cisco Defense Orchestrator, see the Cisco Defense Orchestrator documentation. [\"https://docs.defenseorchestrator.com/#!g-managing-security-and-network-devices-with-cdo.html\"]" }, { "category": "general", "title": "Products Confirmed Not Vulnerable", "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following products:\r\n\r\nCisco Cyber Vision Software\r\nCisco Meraki products\r\nCisco Secure Access - Secure Internet Access (SIA) Advantage\r\nCisco Secure Access - Secure Private Access (SPA) Advantage\r\nCisco Secure Firewall Adaptive Security Appliance (ASA) Software\r\nCisco Secure FMC Software\r\nCisco Secure FTD Software with Snort 2 configured\r\nCisco Umbrella Cloud-delivered Firewall (CDFW), formerly Umbrella Secure Internet Gateway (SIG)\r\nCisco Unified Threat Defense (UTD) Software\r\nOpen Source Snort 2 Software\r\nOpen Source Snort 3 Software" }, { "category": "general", "title": "Workarounds", "text": "There are no workarounds that address this vulnerability." }, { "category": "general", "title": "Fixed Software", "text": "Cisco considers any workarounds and mitigations (if applicable) to be temporary solutions until an upgrade to a fixed software release is available. To fully remediate this vulnerability and avoid future exposure as described in this advisory, Cisco strongly recommends that customers upgrade to the fixed software indicated in this advisory.\r\nCisco Secure Firewall ASA, Secure FMC, and Secure FTD Software\r\nTo help customers determine their exposure to vulnerabilities in Cisco Secure Firewall ASA, Secure FMC, and Secure FTD Software, Cisco provides the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"]. This tool identifies any Cisco security advisories that impact a specific software release and the earliest release that fixes the vulnerabilities that are described in each advisory (“First Fixed”). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities that are described in all the advisories that the Software Checker identifies (“Combined First Fixed”).\r\n\r\nTo use the tool, go to the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] page and follow the instructions. Alternatively, use the following form to search for vulnerabilities that affect a specific software release. To use the form, follow these steps:\r\n\r\nChoose which advisories the tool will search—all advisories, only advisories with a Critical or High Security Impact Rating (SIR) [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr\"], or only this advisory.\r\nChoose the appropriate software.\r\nChoose the appropriate platform.\r\nEnter a release number—for example, 9.20.3.4 for Cisco Secure Firewall ASA Software or 7.4.2 for Cisco Secure FTD Software.\r\nClick Check.\r\n Only this advisoryAll Critical and High advisoriesAll advisoriesCisco ASA SoftwareCisco FMC SoftwareCisco FTD SoftwareAny Platform3000 Series Industrial Security Appliances (ISA)ASA 5500-X Series FirewallsASA Service ModuleAdaptive Security Virtual Appliance (ASAv)Firepower 1000 SeriesFirepower 2100 SeriesFirepower 4100 SeriesFirepower 9000 SeriesFirepower NGFW VirtualSecure Firewall 1200 SeriesSecure Firewall 3100 SeriesSecure Firewall 4200 SeriesFirepower Management Center Appliances\r\n\r\n\r\n\r\n\r\nFor instructions on upgrading a Cisco Secure FTD device, see the appropriate Cisco Secure FMC upgrade guide [\"https://www.cisco.com/c/en/us/support/security/defense-center/products-installation-guides-list.html\"].\r\nAdditional Resources\r\nFor help determining the best Cisco Secure FTD Software release, see the following Recommended Releases documents. If a security advisory recommends a later release, Cisco recommends following the advisory guidance.\r\n\r\nCisco Secure Firewall Threat Defense Compatibility Guide [\"https://www.cisco.com/c/en/us/td/docs/security/secure-firewall/compatibility/threat-defense-compatibility.html\"]" }, { "category": "general", "title": "Vulnerability Policy", "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco." }, { "category": "general", "title": "Exploitation and Public Announcements", "text": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory." }, { "category": "general", "title": "Source", "text": "This vulnerability was found during the resolution of a Cisco Technical Assistance Center (TAC) support case." }, { "category": "legal_disclaimer", "title": "Legal Disclaimer", "text": "SOFTWARE DOWNLOADS AND TECHNICAL SUPPORT\r\n\r\nThe Cisco Support and Downloads [\"https://www.cisco.com/c/en/us/support/index.html\"] page on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool. Please note that customers may download only software that was procured from Cisco directly or through a Cisco authorized reseller or partner and for which the license is still valid.\r\n\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC) [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]. Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories [\"https://www.cisco.com/go/psirt\"] for the relevant Cisco products to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"] or their contracted maintenance providers.\r\n LEGAL DISCLAIMER DETAILS\r\n\r\nCISCO DOES NOT MAKE ANY EXPRESS OR IMPLIED GUARANTEES OR WARRANTIES OF ANY KIND, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, CISCO DOES NOT GUARANTEE THE ACCURACY OR COMPLETENESS OF THIS INFORMATION. THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nCopies or summaries of the information contained in this Security Advisory may lack important information or contain factual errors. Customers are advised to visit the Cisco Security Advisories [\"https://www.cisco.com/go/psirt\"] page for the most recent version of this Security Advisory. The Cisco Product Security Incident Response Team (PSIRT) assesses only the affected and fixed release information that is documented in this advisory. See the Cisco Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"] for more information." } ], "publisher": { "category": "vendor", "contact_details": "psirt@cisco.com", "issuing_authority": "Cisco PSIRT", "name": "Cisco", "namespace": "https://wwww.cisco.com" }, "references": [ { "category": "self", "summary": "Cisco Secure Firewall Threat Defense Software Snort 3 SSL Memory Management Denial of Service Vulnerability", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3ssl-FBEKYXpH" }, { "category": "external", "summary": "Cisco Event Response: March 2026 Cisco Secure Firewall ASA, Secure FMC, and Secure FTD Software Security Advisory Bundled Publication", "url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75736" }, { "category": "external", "summary": "Cisco Security Vulnerability Policy", "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html" }, { "category": "external", "summary": "Determine the Active Snort Version that Runs on Firepower Threat Defense (FTD)", "url": "https://www.cisco.com/c/en/us/support/docs/security/secure-firewall-threat-defense/220415-determine-the-active-snort-version-that.html" }, { "category": "external", "summary": "SSL Decryption", "url": "https://www.cisco.com/c/en/us/td/docs/security/firepower/710/fdm/fptd-fdm-config-guide-710/fptd-fdm-ssl-decryption.html" }, { "category": "external", "summary": "SSL Policies", "url": "https://www.cisco.com/c/en/us/td/docs/security/secure-firewall/management-center/device-config/720/management-center-device-config-72/encrypted-traffic-policies.html" }, { "category": "external", "summary": "Cisco Defense Orchestrator documentation.", "url": "https://docs.defenseorchestrator.com/#!g-managing-security-and-network-devices-with-cdo.html" }, { "category": "external", "summary": "Cisco Software Checker", "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x" }, { "category": "external", "summary": "Security Impact Rating (SIR)", "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr" }, { "category": "external", "summary": "Cisco Secure FMC upgrade guide", "url": "https://www.cisco.com/c/en/us/support/security/defense-center/products-installation-guides-list.html" }, { "category": "external", "summary": "Cisco Secure Firewall Threat Defense Compatibility Guide", "url": "https://www.cisco.com/c/en/us/td/docs/security/secure-firewall/compatibility/threat-defense-compatibility.html" }, { "category": "external", "summary": "Security Vulnerability Policy", "url": "http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html" }, { "category": "external", "summary": "Cisco Support and Downloads", "url": "https://www.cisco.com/c/en/us/support/index.html" }, { "category": "external", "summary": "Cisco Technical Assistance Center (TAC)", "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html" }, { "category": "external", "summary": "considering software upgrades", "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes" }, { "category": "external", "summary": "the advisories", "url": "https://www.cisco.com/go/psirt" } ], "title": "Cisco Secure Firewall Threat Defense Software Snort 3 SSL Memory Management Denial of Service Vulnerability", "tracking": { "current_release_date": "2026-03-04T16:00:00+00:00", "generator": { "date": "2026-08-08T01:31:56+00:00", "engine": { "name": "TVCE" } }, "id": "cisco-sa-ftd-snort3ssl-FBEKYXpH", "initial_release_date": "2026-03-04T16:00:00+00:00", "revision_history": [ { "date": "2026-03-04T16:10:58+00:00", "number": "1.0.0", "summary": "Initial public release." } ], "status": "final", "version": "1.0.0" } }, "product_tree": { "branches": [ { "name": "Cisco", "category": "vendor", "branches": [ { "name": "Cisco Secure Firewall Threat Defense (FTD) Software", "category": "product_family", "branches": [ { "name": "7.4", "category": "product_version", "branches": [ { "name": "7.4.0", "category": "service_pack", "product": { "name": "7.4.0", "product_id": "CSAFPID-300737" } }, { "name": "7.4.1", "category": "service_pack", "product": { "name": "7.4.1", "product_id": "CSAFPID-301109" } }, { "name": "7.4.1.1", "category": "service_pack", "product": { "name": "7.4.1.1", "product_id": "CSAFPID-301606" } }, { "name": "7.4.2", "category": "service_pack", "product": { "name": "7.4.2", "product_id": "CSAFPID-302686" } }, { "name": "7.4.2.1", "category": "service_pack", "product": { "name": "7.4.2.1", "product_id": "CSAFPID-302966" } } ] }, { "name": "7.6", "category": "product_version", "branches": [ { "name": "7.6.0", "category": "service_pack", "product": { "name": "7.6.0", "product_id": "CSAFPID-302870" } } ] } ] }, { "name": "Cisco Firepower 2100 Series", "category": "product_name", "product": { "name": "Cisco Firepower 2100 Series", "product_id": "CSAFPID-277392" } }, { "name": "Cisco Firepower 1000 Series", "category": "product_name", "product": { "name": "Cisco Firepower 1000 Series", "product_id": "CSAFPID-277393" } }, { "name": "Cisco 3000 Series Industrial Security Appliances (ISA)", "category": "product_name", "product": { "name": "Cisco 3000 Series Industrial Security Appliances (ISA)", "product_id": "CSAFPID-277438" } }, { "name": "Cisco Firepower 9000 Series", "category": "product_name", "product": { "name": "Cisco Firepower 9000 Series", "product_id": "CSAFPID-277440" } }, { "name": "Cisco Firepower 4100 Series", "category": "product_name", "product": { "name": "Cisco Firepower 4100 Series", "product_id": "CSAFPID-277441" } }, { "name": "Cisco Secure Firewall Threat Defense Virtual", "category": "product_name", "product": { "name": "Cisco Secure Firewall Threat Defense Virtual", "product_id": "CSAFPID-277464" } }, { "name": "Cisco Secure Firewall 3100 Series", "category": "product_name", "product": { "name": "Cisco Secure Firewall 3100 Series", "product_id": "CSAFPID-286865" } }, { "name": "Cisco Secure Firewall 4200 Series", "category": "product_name", "product": { "name": "Cisco Secure Firewall 4200 Series", "product_id": "CSAFPID-300754" } }, { "name": "Cisco Secure Firewall 1200 Series", "category": "product_name", "product": { "name": "Cisco Secure Firewall 1200 Series", "product_id": "CSAFPID-303206" } } ] } ], "relationships": [ { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.0 when installed on Cisco Secure Firewall 4200 Series", "product_id": "CSAFPID-300737:300754" }, "product_reference": "CSAFPID-300737", "relates_to_product_reference": "CSAFPID-300754" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1 when installed on Cisco Firepower 2100 Series", "product_id": "CSAFPID-301109:277392" }, "product_reference": "CSAFPID-301109", "relates_to_product_reference": "CSAFPID-277392" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1 when installed on Cisco Firepower 1000 Series", "product_id": "CSAFPID-301109:277393" }, "product_reference": "CSAFPID-301109", "relates_to_product_reference": "CSAFPID-277393" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)", "product_id": "CSAFPID-301109:277438" }, "product_reference": "CSAFPID-301109", "relates_to_product_reference": "CSAFPID-277438" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1 when installed on Cisco Firepower 9000 Series", "product_id": "CSAFPID-301109:277440" }, "product_reference": "CSAFPID-301109", "relates_to_product_reference": "CSAFPID-277440" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1 when installed on Cisco Firepower 4100 Series", "product_id": "CSAFPID-301109:277441" }, "product_reference": "CSAFPID-301109", "relates_to_product_reference": "CSAFPID-277441" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1 when installed on Cisco Secure Firewall Threat Defense Virtual", "product_id": "CSAFPID-301109:277464" }, "product_reference": "CSAFPID-301109", "relates_to_product_reference": "CSAFPID-277464" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1 when installed on Cisco Secure Firewall 3100 Series", "product_id": "CSAFPID-301109:286865" }, "product_reference": "CSAFPID-301109", "relates_to_product_reference": "CSAFPID-286865" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1 when installed on Cisco Secure Firewall 4200 Series", "product_id": "CSAFPID-301109:300754" }, "product_reference": "CSAFPID-301109", "relates_to_product_reference": "CSAFPID-300754" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1.1 when installed on Cisco Firepower 2100 Series", "product_id": "CSAFPID-301606:277392" }, "product_reference": "CSAFPID-301606", "relates_to_product_reference": "CSAFPID-277392" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1.1 when installed on Cisco Firepower 1000 Series", "product_id": "CSAFPID-301606:277393" }, "product_reference": "CSAFPID-301606", "relates_to_product_reference": "CSAFPID-277393" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1.1 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)", "product_id": "CSAFPID-301606:277438" }, "product_reference": "CSAFPID-301606", "relates_to_product_reference": "CSAFPID-277438" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1.1 when installed on Cisco Firepower 9000 Series", "product_id": "CSAFPID-301606:277440" }, "product_reference": "CSAFPID-301606", "relates_to_product_reference": "CSAFPID-277440" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1.1 when installed on Cisco Firepower 4100 Series", "product_id": "CSAFPID-301606:277441" }, "product_reference": "CSAFPID-301606", "relates_to_product_reference": "CSAFPID-277441" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1.1 when installed on Cisco Secure Firewall Threat Defense Virtual", "product_id": "CSAFPID-301606:277464" }, "product_reference": "CSAFPID-301606", "relates_to_product_reference": "CSAFPID-277464" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1.1 when installed on Cisco Secure Firewall 3100 Series", "product_id": "CSAFPID-301606:286865" }, "product_reference": "CSAFPID-301606", "relates_to_product_reference": "CSAFPID-286865" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1.1 when installed on Cisco Secure Firewall 4200 Series", "product_id": "CSAFPID-301606:300754" }, "product_reference": "CSAFPID-301606", "relates_to_product_reference": "CSAFPID-300754" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2 when installed on Cisco Firepower 2100 Series", "product_id": "CSAFPID-302686:277392" }, "product_reference": "CSAFPID-302686", "relates_to_product_reference": "CSAFPID-277392" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2 when installed on Cisco Firepower 1000 Series", "product_id": "CSAFPID-302686:277393" }, "product_reference": "CSAFPID-302686", "relates_to_product_reference": "CSAFPID-277393" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)", "product_id": "CSAFPID-302686:277438" }, "product_reference": "CSAFPID-302686", "relates_to_product_reference": "CSAFPID-277438" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2 when installed on Cisco Firepower 9000 Series", "product_id": "CSAFPID-302686:277440" }, "product_reference": "CSAFPID-302686", "relates_to_product_reference": "CSAFPID-277440" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2 when installed on Cisco Firepower 4100 Series", "product_id": "CSAFPID-302686:277441" }, "product_reference": "CSAFPID-302686", "relates_to_product_reference": "CSAFPID-277441" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2 when installed on Cisco Secure Firewall Threat Defense Virtual", "product_id": "CSAFPID-302686:277464" }, "product_reference": "CSAFPID-302686", "relates_to_product_reference": "CSAFPID-277464" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2 when installed on Cisco Secure Firewall 3100 Series", "product_id": "CSAFPID-302686:286865" }, "product_reference": "CSAFPID-302686", "relates_to_product_reference": 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installed on Cisco Secure Firewall Threat Defense Virtual", "product_id": "CSAFPID-302966:277464" }, "product_reference": "CSAFPID-302966", "relates_to_product_reference": "CSAFPID-277464" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2.1 when installed on Cisco Secure Firewall 3100 Series", "product_id": "CSAFPID-302966:286865" }, "product_reference": "CSAFPID-302966", "relates_to_product_reference": "CSAFPID-286865" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2.1 when installed on Cisco Secure Firewall 4200 Series", "product_id": "CSAFPID-302966:300754" }, "product_reference": "CSAFPID-302966", "relates_to_product_reference": "CSAFPID-300754" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.6.0 when installed on Cisco Firepower 1000 Series", "product_id": "CSAFPID-302870:277393" }, "product_reference": "CSAFPID-302870", "relates_to_product_reference": "CSAFPID-277393" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.6.0 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)", "product_id": "CSAFPID-302870:277438" }, "product_reference": "CSAFPID-302870", "relates_to_product_reference": "CSAFPID-277438" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.6.0 when installed on Cisco Firepower 9000 Series", "product_id": "CSAFPID-302870:277440" }, "product_reference": "CSAFPID-302870", "relates_to_product_reference": "CSAFPID-277440" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.6.0 when installed on Cisco Firepower 4100 Series", "product_id": "CSAFPID-302870:277441" }, "product_reference": "CSAFPID-302870", "relates_to_product_reference": "CSAFPID-277441" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.6.0 when installed on Cisco Secure Firewall Threat Defense Virtual", "product_id": "CSAFPID-302870:277464" }, "product_reference": "CSAFPID-302870", "relates_to_product_reference": "CSAFPID-277464" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.6.0 when installed on Cisco Secure Firewall 3100 Series", "product_id": "CSAFPID-302870:286865" }, "product_reference": "CSAFPID-302870", "relates_to_product_reference": "CSAFPID-286865" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.6.0 when installed on Cisco Secure Firewall 4200 Series", "product_id": "CSAFPID-302870:300754" }, "product_reference": "CSAFPID-302870", "relates_to_product_reference": "CSAFPID-300754" }, { "category": "installed_on", "full_product_name": { "name": "Cisco Secure Firewall Threat Defense (FTD) Software 7.6.0 when installed on Cisco Secure Firewall 1200 Series", "product_id": "CSAFPID-302870:303206" }, "product_reference": "CSAFPID-302870", "relates_to_product_reference": "CSAFPID-303206" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-20052", "ids": [ { "system_name": "Cisco Bug ID", "text": "CSCwn63410" } ], "notes": [ { "category": "other", "title": "Affected Product Comprehensiveness", "text": "Complete." } ], "product_status": { "known_affected": [ "CSAFPID-300737:300754", "CSAFPID-301109:277392", "CSAFPID-301109:277393", "CSAFPID-301109:277438", "CSAFPID-301109:277440", "CSAFPID-301109:277441", "CSAFPID-301109:277464", "CSAFPID-301109:286865", "CSAFPID-301109:300754", "CSAFPID-301606:277392", "CSAFPID-301606:277393", "CSAFPID-301606:277438", "CSAFPID-301606:277440", "CSAFPID-301606:277441", "CSAFPID-301606:277464", "CSAFPID-301606:286865", "CSAFPID-301606:300754", "CSAFPID-302686:277392", "CSAFPID-302686:277393", "CSAFPID-302686:277438", "CSAFPID-302686:277440", "CSAFPID-302686:277441", "CSAFPID-302686:277464", "CSAFPID-302686:286865", "CSAFPID-302686:300754", "CSAFPID-302870:277393", "CSAFPID-302870:277438", "CSAFPID-302870:277440", "CSAFPID-302870:277441", "CSAFPID-302870:277464", "CSAFPID-302870:286865", "CSAFPID-302870:300754", "CSAFPID-302870:303206", "CSAFPID-302966:277392", "CSAFPID-302966:277393", "CSAFPID-302966:277438", "CSAFPID-302966:277440", "CSAFPID-302966:277441", "CSAFPID-302966:277464", "CSAFPID-302966:286865", "CSAFPID-302966:300754" ] }, "release_date": "2026-03-04T16:00:00+00:00", "remediations": [ { "category": "vendor_fix", "details": "Cisco has released software updates that address this vulnerability.", "product_ids": [ "CSAFPID-300737:300754", "CSAFPID-301109:277392", "CSAFPID-301109:277393", "CSAFPID-301109:277438", "CSAFPID-301109:277440", "CSAFPID-301109:277441", "CSAFPID-301109:277464", "CSAFPID-301109:286865", "CSAFPID-301109:300754", "CSAFPID-301606:277392", "CSAFPID-301606:277393", "CSAFPID-301606:277438", "CSAFPID-301606:277440", "CSAFPID-301606:277441", "CSAFPID-301606:277464", "CSAFPID-301606:286865", "CSAFPID-301606:300754", "CSAFPID-302686:277392", "CSAFPID-302686:277393", "CSAFPID-302686:277438", "CSAFPID-302686:277440", "CSAFPID-302686:277441", "CSAFPID-302686:277464", "CSAFPID-302686:286865", "CSAFPID-302686:300754", "CSAFPID-302870:277393", "CSAFPID-302870:277438", "CSAFPID-302870:277440", "CSAFPID-302870:277441", "CSAFPID-302870:277464", "CSAFPID-302870:286865", "CSAFPID-302870:300754", "CSAFPID-302870:303206", "CSAFPID-302966:277392", "CSAFPID-302966:277393", "CSAFPID-302966:277438", "CSAFPID-302966:277440", "CSAFPID-302966:277441", "CSAFPID-302966:277464", "CSAFPID-302966:286865", "CSAFPID-302966:300754" ], "url": "https://software.cisco.com" } ], "scores": [ { "cvss_v3": { "baseScore": 5.8, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L", "version": "3.1" }, "products": [ "CSAFPID-300737:300754", "CSAFPID-301109:277392", "CSAFPID-301109:277393", "CSAFPID-301109:277438", "CSAFPID-301109:277440", "CSAFPID-301109:277441", "CSAFPID-301109:277464", "CSAFPID-301109:286865", "CSAFPID-301109:300754", "CSAFPID-301606:277392", "CSAFPID-301606:277393", "CSAFPID-301606:277438", "CSAFPID-301606:277440", "CSAFPID-301606:277441", "CSAFPID-301606:277464", "CSAFPID-301606:286865", "CSAFPID-301606:300754", "CSAFPID-302686:277392", "CSAFPID-302686:277393", "CSAFPID-302686:277438", "CSAFPID-302686:277440", "CSAFPID-302686:277441", "CSAFPID-302686:277464", "CSAFPID-302686:286865", "CSAFPID-302686:300754", "CSAFPID-302870:277393", "CSAFPID-302870:277438", "CSAFPID-302870:277440", "CSAFPID-302870:277441", "CSAFPID-302870:277464", "CSAFPID-302870:286865", "CSAFPID-302870:300754", "CSAFPID-302870:303206", "CSAFPID-302966:277392", "CSAFPID-302966:277393", "CSAFPID-302966:277438", "CSAFPID-302966:277440", "CSAFPID-302966:277441", "CSAFPID-302966:277464", "CSAFPID-302966:286865", "CSAFPID-302966:300754" ] } ], "title": "Cisco Secure Firewall Threat Defense Software Snort 3 Memory Management Denial of Service Vulnerability" } ] }