Cisco Unified Communications Products Hardening Release: October 2026 - Improper control of a resource through its lifetime.
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.
- Products
- Cisco Emergency Responder, Cisco Unified Communications Manager, Cisco Unified Communications Manager IM and Presence Service, Cisco Unity Connection
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-76473
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 15:36 UTC · Revision 2
Source evidence
Cisco Unified Communications Products Hardening Release: October 2026 - Improper control of a resource through its lifetime.
core-cve · Original sourcePublished 21 Oct 2026, 16:14 UTC
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.
cve:CVE-2026-76473
Cisco Emergency Responder
Fixed versions: Not specified
Cisco Unified Communications Manager
Fixed versions: Not specified
Cisco Unified Communications Manager IM and Presence Service
Fixed versions: Not specified
Cisco Unity Connection
Fixed versions: Not specified
Complete source record
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"title": "Cisco Unified Communications Products Hardening Release: October 2026 - Improper control of a resource through its lifetime.",
"summary": "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.",
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}