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CVE record · CVE-2026-76474

Cisco Unified Communications Products Hardening Release: October 2026 - Improper Authentication Vulnerabilities

CVSS 9.8 CriticalCriticalEPSS 0.0047 · 41st percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: cisco) at 21 Oct 2026, 16:14 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Cisco Cisco Emergency Responder
  • affected 14
  • affected 14SU1
  • affected 14SU2
  • affected 14SU3
  • affected 14SU3a
  • affected 15
  • affected 15SU1
  • affected 15SU1a
  • affected 14SU4
  • affected 15SU2
  • affected 15SU3
  • affected 14SU5
  • and 2 more
Other versions: unknown
Cisco Cisco Unified Communications Manager
  • affected 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
  • and 11 more
Other versions: unknown
Cisco Cisco Unified Communications Manager IM and Presence Service
  • affected 14
  • affected 14SU1
  • affected 14SU2
  • affected 14SU2a
  • affected 14SU3
  • affected 15
  • affected 15SU1
  • affected 14SU4
  • affected 15SU2
  • affected 15SU3
  • affected 14SU5
  • affected 15SU4
  • and 1 more
Other versions: unknown
Cisco Cisco Unity Connection
  • affected 14
  • affected 14SU1
  • affected 14SU2
  • affected 14SU3
  • affected 14SU3a
  • affected 15
  • affected 15SU1
  • affected 14SU4
  • affected 15SU2
  • affected 15SU3
  • affected 14SU5
  • affected 15SU4
  • and 1 more
Other versions: unknown
Identifiers
CVE-2026-76474
CNA
cisco
Weakness (CWE)
CWE-287
Tags
Published
21 Oct 2026
Updated
22 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CNA (cisco)
  • CISA KEV Not listed.
  • EPSS 0.0047, the 41st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 21 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.