cisco emergency-responder CVE-2026-76479 vulnerability in Cisco Products
Published on October 21, 2026

Cisco Unified Communications Products Hardening Release: October 2026 - Path Traversal Vulnerabilities
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.

NVD

Vulnerability Analysis

CVE-2026-76479 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Directory traversal Vulnerability?

The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

CVE-2026-76479 has been classified to as a Directory traversal vulnerability or weakness.


Products Associated with CVE-2026-76479

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Cisco Emergency Responder
 
Cisco Unified Communications Manager
 
Cisco Unified Communications Manager Im Presence Service
 
Cisco Unity Connection
 

Affected Versions

Cisco Emergency Responder: Cisco Unified Communications Manager: Cisco Unified Communications Manager IM and Presence Service: Cisco Unity Connection: