Cisco Unified Communications Products Security Hardening Release
Cisco has released software hardening updates to address multiple vulnerabilities discovered during an internal security review of several Unified Communications products.
CVE search metadata
CVE search record: CVE-2026-76473. KEV: no. Product: 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), Cisco Unity Connection. Brief: Cisco Unified Communications Products Security Hardening Release. Brief link: https://feed.craftedsignal.io/briefs/2026-10-cisco-unified-communications-hardening/
CVE search record: CVE-2026-76474. KEV: no. Product: 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), Cisco Unity Connection. Brief: Cisco Unified Communications Products Security Hardening Release. Brief link: https://feed.craftedsignal.io/briefs/2026-10-cisco-unified-communications-hardening/
CVE search record: CVE-2026-76475. KEV: no. Product: 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), Cisco Unity Connection. Brief: Cisco Unified Communications Products Security Hardening Release. Brief link: https://feed.craftedsignal.io/briefs/2026-10-cisco-unified-communications-hardening/
CVE search record: CVE-2026-76476. KEV: no. Product: 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), Cisco Unity Connection. Brief: Cisco Unified Communications Products Security Hardening Release. Brief link: https://feed.craftedsignal.io/briefs/2026-10-cisco-unified-communications-hardening/
CVE search record: CVE-2026-76477. KEV: no. Product: 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), Cisco Unity Connection. Brief: Cisco Unified Communications Products Security Hardening Release. Brief link: https://feed.craftedsignal.io/briefs/2026-10-cisco-unified-communications-hardening/
CVE search record: CVE-2026-76478. KEV: no. Product: 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), Cisco Unity Connection. Brief: Cisco Unified Communications Products Security Hardening Release. Brief link: https://feed.craftedsignal.io/briefs/2026-10-cisco-unified-communications-hardening/
CVE search record: CVE-2026-76479. KEV: no. Product: 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), Cisco Unity Connection. Brief: Cisco Unified Communications Products Security Hardening Release. Brief link: https://feed.craftedsignal.io/briefs/2026-10-cisco-unified-communications-hardening/
CVE search record: CVE-2026-76481. KEV: no. Product: 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), Cisco Unity Connection. Brief: Cisco Unified Communications Products Security Hardening Release. Brief link: https://feed.craftedsignal.io/briefs/2026-10-cisco-unified-communications-hardening/
Triage facts
Revision 1- Applicability
- Cisco Emergency Responder, Cisco Prime Collaboration Deployment +4
- Evidence
- Not observed
- Severity
- Critical
- Sources
- 3 public sources
- Freshness
- Revision 1Oct 21, 17:08 UTC
- Vulnerabilities
- 8 CVEs
- Source quality
- A2Roughly even chance
Cisco has conducted an internal security review of multiple Unified Communications products, resulting in software hardening releases that address internally discovered vulnerabilities. These issues are not known to be actively exploited. Cisco has grouped these issues by Common Weakness Enumeration (CWE) and assigned CVE identifiers to each group. No workarounds are available to address these vulnerabilities; software updates are required.