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CVE-2026-76494: Improper Control of Generation of Code ('Code Injection') in Cisco Cisco TelePresence Video Communication Server (VCS) Expressway

0
High
VulnerabilityCVE-2026-76494cvecve-2026-76494
Published: 10/21/2026 (10/21/2026, 16:17:44 UTC)
Source: CVE Database V5
Vendor/Project: Cisco
Product: Cisco TelePresence Video Communication Server (VCS) Expressway

Description

CVE-2026-76494 is a high-severity vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway involving improper control of code generation, classified as a code injection issue (CWE-94). It was identified during an internal security review by Cisco, leading to software hardening releases addressing multiple vulnerabilities. The CVSS 3.1 score is 7.8, indicating significant impact on confidentiality, integrity, and availability. No specific affected versions or patch information are provided in the available data.

CVSS v3.1

Score 7.8high

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

Cisco

Cisco TelePresence Video Communication Server (VCS) Expressway

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 10/21/2026, 16:45:35 UTC

Technical Analysis

This vulnerability concerns improper control of code generation in Cisco TelePresence VCS Expressway, categorized under CWE-94 (Code Injection). It was discovered internally by Cisco's engineering team during a security review, resulting in software hardening releases. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) indicates that an attacker with local access and low privileges can exploit the vulnerability without user interaction, potentially causing high impact on confidentiality, integrity, and availability. No explicit affected versions or patch details are provided in the source data.

Potential Impact

The vulnerability allows an attacker with local access and low privileges to perform code injection, potentially leading to full compromise of confidentiality, integrity, and availability of the affected system. This could enable unauthorized code execution and control over the Cisco TelePresence VCS Expressway device.

Mitigation Recommendations

The input data does not provide explicit patch or remediation information. Patch status is not yet confirmed — check the Cisco vendor advisory for current remediation guidance. Cisco has indicated software hardening releases addressing multiple vulnerabilities including this one, so applying the latest updates from Cisco is recommended once available.

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Technical Details

Data Version
5.2
Assigner Short Name
cisco
Date Reserved
2026-08-19T12:02:03.640Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6ad8e8d74d27ba8daac3b6d2

Added to database: 10/21/2026, 16:31:19 UTC

Last enriched: 10/21/2026, 16:45:35 UTC

Last updated: 10/21/2026, 16:46:20 UTC

Views: 6

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