Skip to content
CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-76473

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

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cisco Cisco Emergency Responder

Default version status: unknown

  • 14affected
  • 14SU1affected
  • 14SU2affected
  • 14SU3affected
  • 14SU3aaffected
  • 15affected
  • 15SU1affected
  • 15SU1aaffected
  • 14SU4affected
  • 15SU2affected
  • 15SU3affected
  • 14SU5affected
  • 15SU4affected
  • 14SU6affected

Cisco Cisco Unified Communications Manager

Default version status: unknown

  • 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 Cisco Unified Communications Manager IM and Presence Service

Default version status: unknown

  • 14affected
  • 14SU1affected
  • 14SU2affected
  • 14SU2aaffected
  • 14SU3affected
  • 15affected
  • 15SU1affected
  • 14SU4affected
  • 15SU2affected
  • 15SU3affected
  • 14SU5affected
  • 15SU4affected
  • 14SU6affected

Cisco Cisco Unity Connection

Default version status: unknown

  • 14affected
  • 14SU1affected
  • 14SU2affected
  • 14SU3affected
  • 14SU3aaffected
  • 15affected
  • 15SU1affected
  • 14SU4affected
  • 15SU2affected
  • 15SU3affected
  • 14SU5affected
  • 15SU4affected
  • 14SU6affected

References