Riskcovery

CVE-2026-76473

Cisco Unified Communications Products Hardening Release: October 2026 - Improper control of a resource through its lifetime.

State
Published
Severity
9.8 Critical
Published
Oct 21, 2026
Updated
Oct 27, 2026
Reserved
Aug 19, 2026

Read the record on cve.org

Description

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-2026-76473 are related to issues concerning improper neutralization of special elements in output used by a downstream component that are grouped under the Common Weakness Enumeration (CWE) Class CWE-74.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hcisco

Weaknesses

  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Affected Products

ProductVersions
Cisco Emergency ResponderCisco
  • 14Affected
  • 14SU1Affected
  • 14SU2Affected
  • 14SU3Affected
  • 14SU3aAffected
  • 15Affected
  • 15SU1Affected
  • 15SU1aAffected
  • 14SU4Affected
  • 15SU2Affected
  • 15SU3Affected
  • 14SU5Affected
  • 15SU4Affected
  • 14SU6Affected
Cisco Unified Communications ManagerCisco
  • 14Affected
  • 14SU1Affected
  • 14SU2Affected
  • 14SU3Affected
  • 15Affected
  • 15SU1Affected
  • 14SU4Affected
  • 14SU4aAffected
  • 15SU1aAffected
  • 15SU2Affected
  • 15.0.1.13010-1Affected
  • 15.0.1.13011-1Affected
  • 15.0.1.13012-1Affected
  • 15.0.1.13013-1Affected
  • 15.0.1.13014-1Affected
  • 15.0.1.13015-1Affected
  • 15.0.1.13016-1Affected
  • 15.0.1.13017-1Affected
  • 15SU3aAffected
  • 14SU5Affected
  • 15SU4Affected
  • 15SU4aAffected
  • 14SU6Affected
Cisco Unified Communications Manager IM and Presence ServiceCisco
  • 14Affected
  • 14SU1Affected
  • 14SU2Affected
  • 14SU2aAffected
  • 14SU3Affected
  • 15Affected
  • 15SU1Affected
  • 14SU4Affected
  • 15SU2Affected
  • 15SU3Affected
  • 14SU5Affected
  • 15SU4Affected
  • 14SU6Affected
Cisco Unity ConnectionCisco
  • 14Affected
  • 14SU1Affected
  • 14SU2Affected
  • 14SU3Affected
  • 14SU3aAffected
  • 15Affected
  • 15SU1Affected
  • 14SU4Affected
  • 15SU2Affected
  • 15SU3Affected
  • 14SU5Affected
  • 15SU4Affected
  • 14SU6Affected

References

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