Cisco Unified Communications Products Hardening Release: October 2026 - Improper control of a resource through its lifetime.
Impact
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.
Source excerpt · ciscoAffected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
Cisco · Cisco Emergency Responder
Other versions: unknown
| Version / range | Source status |
|---|---|
| 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 |
Cisco · Cisco Unified Communications Manager
Other versions: unknown
| Version / range | Source status |
|---|---|
| 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 |
Cisco · Cisco Unified Communications Manager IM and Presence Service
Other versions: unknown
| Version / range | Source status |
|---|---|
| 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 |
Cisco · Cisco Unity Connection
Other versions: unknown
| Version / range | Source status |
|---|---|
| 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 |
Original source 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.