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CVE-2026-76479: Cisco Unified Communications Products Hardening Release: October 2026 - Path Traversal Vulnerabilities
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-21 · updated 2026-10-22
- Weakness: CWE-22
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-2026-76479 are related to issues concerning improper limitation of a pathname to a restricted directory that are grouped under the Common Weakness Enumeration (CWE) Base CWE-22.
Affected products
- Cisco Emergency Responder: 14, 14SU1, 14SU2, 14SU3, 14SU3a, 15 (+8)
- Cisco Unified Communications Manager: 14, 14SU1, 14SU2, 14SU3, 15, 15SU1 (+17)
- Cisco Unified Communications Manager IM and Presence Service: 14, 14SU1, 14SU2, 14SU2a, 14SU3, 15 (+7)
- Cisco Unity Connection: 14, 14SU1, 14SU2, 14SU3, 14SU3a, 15 (+7)
In the news
References
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