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CVE-2026-76474

CVE-2026-76474 · Cisco Unified Communications Products Hardening Release: October 2026 - Improper Authentication 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, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection have conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76474 are related to issues concerning improper authentication that are grouped under the Common Weakness Enumeration (CWE) Class CWE-287.

CVSS 9.8 · Critical · EPSS 0.4%

Published
Updated

Affected products and versions

  • cisco emergency responder

    Versions
    • 14: Affected
    • 14SU1: Affected
    • 14SU2: Affected
    • 14SU3: Affected
    • 14SU3a: Affected
    • 15: Affected
    • 15SU1: Affected
    • 15SU1a: Affected
    • 14SU4: Affected
    • 15SU2: Affected
    • 15SU3: Affected
    • 14SU5: Affected
    • 15SU4: Affected
    • 14SU6: Affected

    No fix published

  • cisco unified communications manager

    Versions
    • 14: Affected
    • 14SU1: Affected
    • 14SU2: Affected
    • 14SU3: Affected
    • 15: Affected
    • 15SU1: Affected
    • 14SU4: Affected
    • 14SU4a: Affected
    • 15SU1a: Affected
    • 15SU2: Affected
    • 15.0.1.13010-1: Affected
    • 15.0.1.13011-1: Affected
    • 15.0.1.13012-1: Affected
    • 15.0.1.13013-1: Affected
    • 15.0.1.13014-1: Affected
    • 15.0.1.13015-1: Affected
    • 15.0.1.13016-1: Affected
    • 15.0.1.13017-1: Affected
    • 15SU3a: Affected
    • 14SU5: Affected
    • 15SU4: Affected
    • 15SU4a: Affected
    • 14SU6: Affected

    No fix published

  • cisco unified communications manager im and presence service

    Versions
    • 14: Affected
    • 14SU1: Affected
    • 14SU2: Affected
    • 14SU2a: Affected
    • 14SU3: Affected
    • 15: Affected
    • 15SU1: Affected
    • 14SU4: Affected
    • 15SU2: Affected
    • 15SU3: Affected
    • 14SU5: Affected
    • 15SU4: Affected
    • 14SU6: Affected

    No fix published

  • cisco unity connection

    Versions
    • 14: Affected
    • 14SU1: Affected
    • 14SU2: Affected
    • 14SU3: Affected
    • 14SU3a: Affected
    • 15: Affected
    • 15SU1: Affected
    • 14SU4: Affected
    • 15SU2: Affected
    • 15SU3: Affected
    • 14SU5: Affected
    • 15SU4: Affected
    • 14SU6: Affected

    No fix published

Original sources

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