Vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway

[ Description ]Official description

A vulnerability in Cisco Expressway Series could allow an unauthenticated, remote attacker to obtain sensitive information from an affected device. This vulnerability is due to insufficient authorization checks of HTTP requests during Mobile and Remote Access (MRA) provisioning. An attacker could exploit this vulnerability by submitting a crafted URL request to an affected device. A successful exploit could allow the attacker to access sensitive information that they would otherwise not have authorization to access. Note: Cisco Expressway Series refers to Cisco Expressway Core (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• NCSC-NL22 Oct 2026NCSC-2026-0451

  Vulnerabilities fixed in Cisco Expressway Series Translated from Dutch

  Probability/damage M/HCVE-2026-76435CVE-2026-76466CVE-2026-76473+16 more CVEs
• BSI CERT-Bund21 Oct 2026WID-SEC-2026-4105

  Cisco Expressway: Multiple vulnerabilities Translated from German

  Risk highCVE-2026-76466CVE-2026-76493CVE-2026-76492+7 more CVEs

[ References ]References

• sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressw…