Security Alert (A25-09-10): Multiple Vulnerabilities in Cisco Products

Description:

Cisco released security advisories to address multiple vulnerabilities in Cisco devices and software. For information about the vulnerabilities and the attacking vectors, please refer to the corresponding security advisories at the vendor's website.

Affected Systems:

• Cisco IOS XR Software

For detailed information of the affected systems, please refer to the section "Affected Products" of corresponding security advisory at vendor's website.

Impact:

Depending on the vulnerabilities being exploited, a successful exploitation could lead to denial of service or security restriction bypass of affected system.

Recommendation:

Patches for affected systems are now available. System administrators of affected systems should follow the recommendations provided by the vendor and take immediate actions to mitigate the risk. For detailed information of the available patches, please refer to the section "Fixed Software" of corresponding security advisory at vendor's website.

System administrators should contact their vendors for the fixes and assistance.

More Information:

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-acl-packetio-Swjhhbtz
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-arp-storm-EjUU55yM
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xrsig-UY4zRUCG
• https://www.hkcert.org/security-bulletin/cisco-ios-xr-multiple-vulnerabilities_20250911
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-20159
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-20248
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-20340