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Cisco IOS and NX-OS Software
Cisco IOS XE 3S
Security Advisories, Responses and Notices
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Cisco IOS and IOS XE Software Locator ID Separation Protocol Denial of Service Vulnerability
27/Mar/2024
Cisco IOS and IOS XE Software Intermediate System-to-Intermediate System Denial of Service Vulnerability
27/Mar/2024
Cisco IOS and IOS XE Software Internet Key Exchange Version 1 Fragmentation Denial of Service Vulnerabilities
27/Mar/2024
Cisco IOS XE Software Auxiliary Asynchronous Port Denial of Service Vulnerability
27/Mar/2024
Cisco IOS and IOS XE Software Cisco Group Encrypted Transport VPN Software Out-of-Bounds Write Vulnerability
27/Sep/2023
Cisco IOS XE Software for ASR 1000 Series Aggregation Services Routers IPv6 Multicast Denial of Service Vulnerability
27/Sep/2023
Cisco IOS and IOS XE Software Command Authorization Bypass Vulnerability
27/Sep/2023
Cisco IOS XE Software Virtual Fragmentation Reassembly Denial of Service Vulnerability
22/Mar/2023
Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulnerability
22/Mar/2023
Cisco IOS and IOS XE Software SSH Denial of Service Vulnerability
28/Sep/2022
Cisco IOS XE Software Border Gateway Protocol Resource Public Key Infrastructure Denial of Service Vulnerability
13/Apr/2022
Cisco IOS XE Software AppNav-XE Denial of Service Vulnerability
13/Apr/2022
Cisco IOS and IOS XE Software FXO Interface Destination Pattern Bypass Vulnerability
22/Sep/2021
Cisco ASR 900 and ASR 920 Series Aggregation Services Routers Access Control List Bypass Vulnerability
22/Sep/2021
Cisco IOS XE Software Rate Limiting Network Address Translation Denial of Service Vulnerability
22/Sep/2021
Cisco IOS and IOS XE Software Link Layer Discovery Protocol Denial of Service Vulnerability
22/Sep/2021
Cisco IOS XE Software H.323 Application Level Gateway Bypass Vulnerability
22/Sep/2021
Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers Simple Network Management Protocol Denial of Service Vulnerability
22/Sep/2021
Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers Common Open Policy Service Denial of Service Vulnerability
22/Sep/2021
Cisco IOS and IOS XE Software IKEv2 AutoReconnect Feature Denial of Service Vulnerability
22/Sep/2021
Cisco IOS and IOS XE Software TrustSec CLI Parser Denial of Service Vulnerability
22/Sep/2021
Cisco IOS XE Software Arbitrary Code Execution Vulnerability
24/Mar/2021
Cisco IOS XE Software DNS NAT Protocol Application Layer Gateway Denial of Service Vulnerability
24/Mar/2021
Cisco IOS XE Software Plug-and-Play Privilege Escalation Vulnerability
24/Mar/2021
Cisco IOS and IOS XE Software ISDN Q.931 Denial of Service Vulnerability
24/Sep/2020
Cisco IOS and IOS XE Software Information Disclosure Vulnerability
24/Sep/2020
Cisco IOS XE Software Arbitrary Code Execution Vulnerability
24/Sep/2020
Cisco IOS XE Software Common Open Policy Service Engine Denial of Service Vulnerability
24/Sep/2020
Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers DHCP Denial of Service Vulnerability
24/Sep/2020
Telnet Vulnerability Affecting Cisco Products: June 2020
24/Jun/2020
Cisco IOS and IOS XE Software Tcl Denial of Service Vulnerability
03/Jun/2020
Cisco IOS and IOS XE Software Secure Shell Denial of Service Vulnerability
03/Jun/2020
Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability
03/Jun/2020
Cisco IOS XE Software Privilege Escalation Vulnerability
03/Jun/2020
Cisco IOS and IOS XE Software Tcl Arbitrary Code Execution Vulnerability
03/Jun/2020
Cisco IOS and IOS XE Software Internet Key Exchange Version 2 Denial of Service Vulnerability
03/Jun/2020
Cisco IOS, IOS XE, and NX-OS Software Security Group Tag Exchange Protocol Denial of Service Vulnerability
03/Jun/2020
Cisco IOS XE Software Privilege Escalation Vulnerability
03/Jun/2020
Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability
03/Jun/2020
Cisco IOS, IOS XE, IOS XR, and NX-OS Software One Platform Kit Remote Code Execution Vulnerability
03/Jun/2020
Cisco IOS and Cisco IOS XE Software Web UI Cross-Site Request Forgery Vulnerability
13/Apr/2020
Cisco IOS XE Software Consent Token Bypass Vulnerability
25/Sep/2019
Cisco IOS XE Software Arbitrary Code Execution Vulnerability
25/Sep/2019
Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability
25/Sep/2019
Cisco IOS XE Software ISDN Data Leak Vulnerability
25/Sep/2019
Cisco IOS and IOS XE Software Change of Authorization Denial of Service Vulnerability
25/Sep/2019
Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability
25/Sep/2019
Cisco IOS XE Software NAT Session Initiation Protocol Application Layer Gateway Denial of Service Vulnerability
25/Sep/2019
Cisco IOS and IOS XE Software HTTP Client Information Disclosure Vulnerability
25/Sep/2019
Cisco NX-OS and IOS XE Software Virtual Service Image Signature Bypass Vulnerability
25/Sep/2019
Cisco REST API Container for IOS XE Software Authentication Bypass Vulnerability
28/Aug/2019
Cisco IOS and IOS XE Software Hot Standby Router Protocol Information Leak Vulnerability
27/Mar/2019
Cisco IOS XE Software Command Injection Vulnerability
27/Mar/2019
Cisco Aggregation Services Router 900 Route Switch Processor 3 OSPFv2 Denial of Service Vulnerability
27/Mar/2019
Cisco IOS and IOS XE Software IP Service Level Agreement Denial of Service Vulnerability
27/Mar/2019
Cisco IOS and IOS XE Software Network Plug-and-Play Agent Certificate Validation Vulnerability
27/Mar/2019
Cisco IOS and IOS XE Software ISDN Interface Denial of Service Vulnerability
27/Mar/2019
Cisco IOS and IOS XE Software TCP Denial of Service Vulnerability
09/Jan/2019
Cisco IOS XE Software Privileged EXEC Mode Root Shell Access Vulnerability
26/Sep/2018
Cisco IOS and IOS XE Software TACACS+ Client Denial of Service Vulnerability
26/Sep/2018
Cisco IOS and IOS XE Software VLAN Trunking Protocol Denial of Service Vulnerability
26/Sep/2018
Cisco IOS and IOS XE Software Cisco Discovery Protocol Denial of Service Vulnerability
26/Sep/2018
Cisco IOS and IOS XE Software OSPFv3 Denial of Service Vulnerability
26/Sep/2018
Cisco IOS and IOS XE Software SM-1T3/E3 Service Module Denial of Service Vulnerability
26/Sep/2018
Cisco IOS and IOS XE Software IPv6 Hop-by-Hop Options Denial of Service Vulnerability
26/Sep/2018
Cisco IOS XE Software and Cisco ASA 5500-X Series Adaptive Security Appliance IPsec Denial of Service Vulnerability
26/Sep/2018
Cisco IOS XE Software Command Injection Vulnerabilities
26/Sep/2018
Cisco IOS XE Software NAT Session Initiation Protocol Application Layer Gateway Denial of Service Vulnerability
26/Sep/2018
Cisco IOS and IOS XE Software DHCP Version 4 Relay Reply Denial of Service Vulnerability
28/Mar/2018
Cisco IOS and IOS XE Software DHCP Version 4 Relay Heap Overflow Denial of Service Vulnerability
28/Mar/2018
Cisco IOS XE Software User EXEC Mode Root Shell Access Vulnerabilities
28/Mar/2018
Cisco IOS XE Software Simple Network Management Protocol Double-Free Denial of Service Vulnerability
28/Mar/2018
Cisco IOS and IOS XE Software Quality of Service Remote Code Execution Vulnerability
28/Mar/2018
Cisco IOS XE Software Static Credential Vulnerability
28/Mar/2018
Cisco IOS XE Software Ethernet Virtual Private Network Border Gateway Protocol Denial of Service Vulnerability
03/Nov/2017
Cisco IOS and IOS XE Software Internet Key Exchange Denial of Service Vulnerability
27/Sep/2017
Cisco IOS and IOS XE Software Plug-and-Play PKI API Certificate Validation Vulnerability
27/Sep/2017
Cisco IOS XE Software for Cisco ASR 1000 Series and cBR-8 Routers Line Card Console Access Vulnerability
27/Sep/2017
Cisco IOS and Cisco IOS XE Software UDP Packet Processing Denial of Service Vulnerability
06/Sep/2017
Multiple Cisco Products OSPF LSA Manipulation Vulnerability
27/Jul/2017
Cisco IOS and IOS XE Software Autonomic Control Plane Channel Information Disclosure Vulnerability
26/Jul/2017
Cisco IOS and IOS XE Software Autonomic Networking Infrastructure Denial of Service Vulnerability
26/Jul/2017
SNMP Remote Code Execution Vulnerabilities in Cisco IOS and IOS XE Software
29/Jun/2017
Cisco IOS and IOS XE Software EnergyWise Denial of Service Vulnerabilities
19/Apr/2017
Cisco IOS XE Software Startup Script Local Command Execution Vulnerability
05/Apr/2017
Cisco IOS XE Software for Cisco ASR 920 Series Routers Zero Touch Provisioning Denial of Service Vulnerability
22/Mar/2017
Cisco IOS and IOS XE Software Layer 2 Tunneling Protocol Denial of Service Vulnerability
22/Mar/2017
Cisco IOS XE Software Web User Interface Denial of Service Vulnerability
22/Mar/2017
Cisco IOS and IOS XE Software Autonomic Networking Infrastructure Registrar Denial of Service Vulnerability
20/Mar/2017
Cisco IOS and IOS XE Software IPv6 Denial of Service Vulnerability
20/Mar/2017
Cisco IOS and IOS XE Software Cluster Management Protocol Remote Code Execution Vulnerability
17/Mar/2017
Cisco ASR 1000 Series Aggregation Services Routers SNMP High CPU Denial of Service Vulnerability
01/Feb/2017
Cisco IOS and IOS XE Software H.323 Message Validation Denial of Service Vulnerability
28/Sep/2016
Cisco IOS and IOS XE Software Multicast Routing Denial of Service Vulnerabilities
28/Sep/2016
Cisco IOS XE Software NAT Denial of Service Vulnerability
28/Sep/2016
Cisco IOS XE Software IP Fragment Reassembly Denial of Service Vulnerability
28/Sep/2016
Cisco IOS and IOS XE Software DNS Forwarder Denial of Service Vulnerability
28/Sep/2016
Cisco IOS and IOS XE Software IP Detail Record Denial of Service Vulnerability
28/Sep/2016
Cisco IOS and IOS XE Software AAA Login Denial of Service Vulnerability
28/Sep/2016
Cisco IOS and IOS XE Software Internet Key Exchange Version 1 Fragmentation Denial of Service Vulnerability
28/Sep/2016
IKEv1 Information Disclosure Vulnerability in Multiple Cisco Products
16/Sep/2016
Cisco IOS and IOS XE Software Border Gateway Protocol Message Processing Denial of Service Vulnerability
15/Jul/2016
Cisco IOS XE Software SNMP Subsystem Denial of Service Vulnerability
20/Jun/2016
Cisco cBR-8 Series Converged Broadband Router SNMP Denial of Service Vulnerability
17/Jun/2016
Cisco Products IPv6 Neighbor Discovery Crafted Packet Denial of Service Vulnerability
25/May/2016
Multiple Cisco Products libSRTP Denial of Service Vulnerability
20/Apr/2016
Cisco IOS and Cisco IOS XE ntp Subsystem Unauthorized Access Vulnerability
19/Apr/2016
Cisco IOS and IOS XE and Cisco Unified Communications Manager Software Session Initiation Protocol Memory Leak Vulnerability
23/Mar/2016
Cisco IOS and IOS XE Software Internet Key Exchange Version 2 Fragmentation Denial of Service Vulnerability
23/Mar/2016
Cisco IOS and IOS XE Software DHCPv6 Relay Denial of Service Vulnerability
23/Mar/2016
Cisco IOS and IOS XE Software IKEv1 State Machine Denial of Service Vulnerability
18/Dec/2015
Cisco IOS XE Software IPv6 Neighbor Discovery Denial of Service Vulnerability
14/Dec/2015
Cisco IOS XE 3S Platforms Series root Shell License Bypass Vulnerability
03/Dec/2015
OpenSSL RSA Temporary Key Cryptographic Downgrade Vulnerability
08/Oct/2015
Cisco IOS Software and Cisco IOS XE Software Crafted DHCPv6 Sequence Denial of Service Vulnerability
08/Oct/2015
Cisco IOS-XE Fragmented Packet Resource Consumption Vulnerability
08/Oct/2015
Cisco IOS XE Software Autonomic Networking Infrastructure Overwrite Vulnerability
02/Oct/2015
Cisco IOS Software and IOS XE Software NTP Access Group Vulnerability
02/Oct/2015
Cisco IOS XE Software Autonomic Networking Infrastructure Certificate Chain Validation Vulnerability
02/Oct/2015
Cisco IOS XE Software Autonomic Networking Infrastructure Certificate Validation Vulnerability
02/Oct/2015
Cisco IOS XE Software Autonomic Networking Infrastructure Routing Protocol for Low-Power and Lossy Networks Vulnerability
02/Oct/2015
Cisco IOS and IOS XE Software SSH Version 2 RSA-Based User Authentication Bypass Vulnerability
23/Sep/2015
Cisco IOS XE Software Network Address Translation Denial of Service Vulnerability
23/Sep/2015
Cisco IOS and IOS XE Software IPv6 First Hop Security Denial of Service Vulnerabilities
23/Sep/2015
Multiple Vulnerabilities in ntpd (April 2015) Affecting Cisco Products
08/Apr/2015
Multiple Vulnerabilities in Cisco IOS Software and IOS XE Software Autonomic Networking Infrastructure
25/Mar/2015
Cisco IOS Software and IOS XE Software Internet Key Exchange Version 2 Denial of Service Vulnerabilities
25/Mar/2015
Cisco IOS Software and IOS XE Software mDNS Gateway Denial of Service Vulnerability
25/Mar/2015
Cisco IOS Software and IOS XE Software TCP Packet Memory Leak Vulnerability
25/Mar/2015
Multiple Vulnerabilities in Cisco IOS XE Software for Cisco ASR 1000 Series, Cisco ISR 4400 Series, and Cisco Cloud Services 1000v Series Routers
25/Mar/2015
Multiple Vulnerabilities in OpenSSL (January 2015) Affecting Cisco Products
10/Mar/2015
GNU Bash Environment Variable Command Injection Vulnerability
26/Sep/2014
Cisco IOS Software DHCP Version 6 Denial of Service Vulnerability
24/Sep/2014
Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability
24/Sep/2014
Multiple Vulnerabilities in Cisco IOS Software Multicast Domain Name System
24/Sep/2014
Cisco IOS Software and Cisco IOS XE Software EnergyWise Crafted Packet Denial of Service Vulnerability
06/Aug/2014
Support Documentation
All Support Documentation for this Series