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CVE-2026-76491

CVE-2026-76491 · Cisco Expressway Series Software Hardening Release: October 2026 - Denial of Service Vulnerabilities

This page contains facts from public vulnerability sources. Check the original advisory before updating.

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.   The vulnerabilities tracked by CVE-2026-76491 are related to issues concerning reachable assertions that are grouped under the Common Weakness Enumeration (CWE) Base CWE-617.

CVSS 7.5 · High · EPSS 0.3%

Published
Updated

Affected products and versions

  • cisco telepresence video communication server (vcs) expressway

    Versions
    • X8.11.2: Affected
    • X8.6: Affected
    • X8.11.3: Affected
    • X8.2.2: Affected
    • X8.8.3: Affected
    • X8.11.0: Affected
    • X12.5.2: Affected
    • X8.1.1: Affected
    • X8.9: Affected
    • X12.5.1: Affected
    • X12.5.6: Affected
    • X8.7.3: Affected
    • X12.6.0: Affected
    • X8.11.1: Affected
    • X8.5: Affected
    • X8.9.1: Affected
    • X8.10.2: Affected
    • X8.8.2: Affected
    • X8.5.3: Affected
    • X8.1: Affected
    • X8.9.2: Affected
    • X8.11.4: Affected
    • X12.5.4: Affected
    • X8.8.1: Affected
    • X8.2.1: Affected
    • X8.5.1: Affected
    • X8.6.1: Affected
    • X8.1.2: Affected
    • X8.8: Affected
    • X8.10.0: Affected
    • X12.5.3: Affected
    • X8.10.1: Affected
    • X12.5.7: Affected
    • X8.10.3: Affected
    • X8.7.1: Affected
    • X8.2: Affected
    • X12.5.8: Affected
    • X8.7: Affected
    • X8.5.2: Affected
    • X12.5.9: Affected
    • X12.5.0: Affected
    • X8.10.4: Affected
    • X8.7.2: Affected
    • X12.5.5: Affected
    • X12.6.1: Affected
    • X12.6.2: Affected
    • X12.6.3: Affected
    • X12.6.4: Affected
    • X12.7.0: Affected
    • X12.7.1: Affected
    • X14.0.0: Affected
    • X14.0.1: Affected
    • X14.0.2: Affected
    • X14.0.3: Affected
    • X14.0.4: Affected
    • X14.0.5: Affected
    • X14.0.6: Affected
    • X14.0.7: Affected
    • X14.0.8: Affected
    • X14.2.0: Affected
    • X14.0.9: Affected
    • X14.2.1: Affected
    • X14.2.2: Affected
    • X14.0.11: Affected
    • X14.2.5: Affected
    • X14.0.10: Affected
    • X14.2.6: Affected
    • X14.2.7: Affected
    • X14.3.0: Affected
    • X14.3.1: Affected
    • X14.3.2: Affected
    • X14.3.3: Affected
    • X15.0.0: Affected
    • X14.3.4: Affected
    • X14.3.5: Affected
    • X15.0.1: Affected
    • X15.0.2: Affected
    • X15.0.3: Affected
    • X14.3.6: Affected
    • X15.2.0: Affected
    • X15.2.1: Affected
    • X15.2.2: Affected
    • X15.2.3: Affected
    • X14.3.7: Affected
    • X15.2.4.: Affected
    • X15.2.4: Affected
    • X15.3.0: Affected
    • X15.3.1: Affected
    • X15.3.2: Affected
    • X15.4.0: Affected
    • X15.5.0: Affected
    • X15.5.1: Affected
    • X15.5.2: Affected
    • X15.5.3: Affected

    No fix published

Original sources

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