CVE-2026-76435 is a vulnerability in Cisco Telepresence Video Communication Server
Published on October 21, 2026
Cisco Expressway Series Information Disclosure Vulnerability
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.
Vulnerability Analysis
CVE-2026-76435 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Exposure of Sensitive System Information to an Unauthorized Control Sphere
The application does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the application does.
Products Associated with CVE-2026-76435
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Affected Versions
Cisco TelePresence Video Communication Server (VCS) Expressway:- Version X8.11.2 is affected.
- Version X8.6 is affected.
- Version X8.11.3 is affected.
- Version X8.2.2 is affected.
- Version X8.8.3 is affected.
- Version X8.11.0 is affected.
- Version X12.5.2 is affected.
- Version X8.1.1 is affected.
- Version X8.9 is affected.
- Version X12.5.1 is affected.
- Version X12.5.6 is affected.
- Version X8.7.3 is affected.
- Version X12.6.0 is affected.
- Version X8.11.1 is affected.
- Version X8.5 is affected.
- Version X8.9.1 is affected.
- Version X8.10.2 is affected.
- Version X8.8.2 is affected.
- Version X8.5.3 is affected.
- Version X8.1 is affected.
- Version X8.9.2 is affected.
- Version X8.11.4 is affected.
- Version X12.5.4 is affected.
- Version X8.8.1 is affected.
- Version X8.2.1 is affected.
- Version X8.5.1 is affected.
- Version X8.6.1 is affected.
- Version X8.1.2 is affected.
- Version X8.8 is affected.
- Version X8.10.0 is affected.
- Version X12.5.3 is affected.
- Version X8.10.1 is affected.
- Version X12.5.7 is affected.
- Version X8.10.3 is affected.
- Version X8.7.1 is affected.
- Version X8.2 is affected.
- Version X12.5.8 is affected.
- Version X8.7 is affected.
- Version X8.5.2 is affected.
- Version X12.5.9 is affected.
- Version X12.5.0 is affected.
- Version X8.10.4 is affected.
- Version X8.7.2 is affected.
- Version X12.5.5 is affected.
- Version X12.6.1 is affected.
- Version X12.6.2 is affected.
- Version X12.6.3 is affected.
- Version X12.6.4 is affected.
- Version X12.7.0 is affected.
- Version X12.7.1 is affected.
- Version X14.0.0 is affected.
- Version X14.0.1 is affected.
- Version X14.0.2 is affected.
- Version X14.0.3 is affected.
- Version X14.0.4 is affected.
- Version X14.0.5 is affected.
- Version X14.0.6 is affected.
- Version X14.0.7 is affected.
- Version X14.0.8 is affected.
- Version X14.2.0 is affected.
- Version X14.0.9 is affected.
- Version X14.2.1 is affected.
- Version X14.2.2 is affected.
- Version X14.0.11 is affected.
- Version X14.2.5 is affected.
- Version X14.0.10 is affected.
- Version X14.2.6 is affected.
- Version X14.2.7 is affected.
- Version X14.3.0 is affected.
- Version X14.3.1 is affected.
- Version X14.3.2 is affected.
- Version X14.3.3 is affected.
- Version X15.0.0 is affected.
- Version X14.3.4 is affected.
- Version X14.3.5 is affected.
- Version X15.0.1 is affected.
- Version X15.0.2 is affected.
- Version X15.0.3 is affected.
- Version X14.3.6 is affected.
- Version X15.2.0 is affected.
- Version X15.2.1 is affected.
- Version X15.2.2 is affected.
- Version X15.2.3 is affected.
- Version X14.3.7 is affected.
- Version X15.2.4. is affected.
- Version X15.2.4 is affected.
- Version X15.3.0 is affected.
- Version X15.3.1 is affected.
- Version X15.3.2 is affected.
- Version X15.4.0 is affected.
- Version X15.5.0 is affected.
- Version X15.5.1 is affected.
- Version X15.5.2 is affected.