Build Number: 15.5.0-816

Release Date: May 27, 2026

The following features are introduced for this release:

Feature

Description

Talos URS

Talos URS (URL Rating Service) is a URL categorization service fully integrated into the Cisco Secure Web Appliance (SWA). When the Beaker web reputation engine encounters a URL that is not yet categorized during web traffic inspection, it forwards the query to Talos URS for classification. If Talos URS has the URL pre-classified in its cache, it immediately returns the category and score to the proxy, which then enforces the configured policies accordingly. If the URL is not found in the Talos URS cache, the uncategorized domains are uploaded to the Service Request (SR). In the backend, outside of the SWA, these domains are categorized using Talos intelligence and subsequently delivered to the SWA through notification updates. The Cisco Secure Web Appliance (SWA) retrieves the latest notification update during its next scheduled update cycle. Following this update, URLs that were previously uncategorized are categorized and subject to policy enforcement. This integration ensures timely and accurate URL categorization to support effective web filtering and security policy application within the Cisco Secure Web Appliance environment. New/modified commands: talosursconfig Note   Changes made through the talosursconfig CLI command take effect immediately without requiring an explicit commit. However, these changes do not persist through or after a software upgrade of the Secure Web Appliance (SWA). You must reapply any desired configuration changes using talosursconfig after the appliance has completed the upgrade and is back online.

Note	Before upgrading to this release, save copy of the appliance configuration file to a location other than the appliance.

You can upgrade to the 15.5.0-816 HP1 release from the following versions:

• 15.5.0-710

• 15.0.1-004

Log in to the Cisco Bug Search Tool using your Cisco account credentials to view the list of fixed bugs.

• Fixed Issues

• Known Issues

Documentation	Location
Cisco Secure Web Appliance User Guide	http://www.cisco.com/c/en/us/support/security/web-security-appliance/tsd-products-support-series-home.html
Cisco Content Security Management Appliance User Guide	https://www.cisco.com/c/en/us/support/security/content-security-management-appliance/series.html
Virtual Appliance Installation Guide	https://www.cisco.com/c/en/us/support/security/email-securityappliance/products-installation-guides-list.html
Compatibility Matrix for Cisco Secure Email and Web Manager with Secure Web Appliance	https://www.cisco.com/c/dam/en/us/td/docs/security/security_management/sma/sma_all/web-compatibility/index.html
API Guide	https://www.cisco.com/c/en/us/support/security/web-security-appliance/products-programming-reference-guides-list.html

Cisco Support Community is an online forum for Cisco customers, partners, and employees. It provides a place to discuss general web security issues as well as technical information about specific Cisco products. You can post topics to the forum to ask questions and share information with other Cisco users.

Access the Cisco Support Community for web security and associated management:

https://supportforums.cisco.com/community/5786/web-security

Note	To get support for virtual appliances, call Cisco TAC. Have your Virtual License Number (VLN) number ready before you call TAC.

Cisco TAC:

http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html.

Support site for legacy IronPort:

http://www.cisco.com/web/services/acquisitions/ironport.html.

For noncritical issues, you can also access customer support from the appliance. For instructions, see the Troubleshooting section of the Secure Web Appliance User Guide.