CVE-2026-76475 vulnerability in Cisco Products
Published on October 21, 2026

Cisco Unified Communications Products Hardening Release: October 2026 - Cross-site Scripting 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-2026-76475 are related to issues concerning improper neutralization of input during web page generation that are grouped under the Common Weakness Enumeration (CWE) Base CWE-79.

NVD

Vulnerability Analysis

CVE-2026-76475 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.

Attack Vector:

NETWORK

Attack Complexity:

LOW

Privileges Required:

NONE

User Interaction:

REQUIRED

Scope:

CHANGED

Confidentiality Impact:

HIGH

Integrity Impact:

HIGH

Availability Impact:

NONE

Weakness Type

What is a XSS Vulnerability?

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVE-2026-76475 has been classified to as a XSS vulnerability or weakness.

Products Associated with CVE-2026-76475

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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:

Version 14 is affected.
Version 14SU1 is affected.
Version 14SU2 is affected.
Version 14SU3 is affected.
Version 14SU3a is affected.
Version 15 is affected.
Version 15SU1 is affected.
Version 15SU1a is affected.
Version 14SU4 is affected.
Version 15SU2 is affected.
Version 15SU3 is affected.
Version 14SU5 is affected.
Version 15SU4 is affected.
Version 14SU6 is affected.

Cisco Unified Communications Manager:

Version 14 is affected.
Version 14SU1 is affected.
Version 14SU2 is affected.
Version 14SU3 is affected.
Version 15 is affected.
Version 15SU1 is affected.
Version 14SU4 is affected.
Version 14SU4a is affected.
Version 15SU1a is affected.
Version 15SU2 is affected.
Version 15.0.1.13010-1 is affected.
Version 15.0.1.13011-1 is affected.
Version 15.0.1.13012-1 is affected.
Version 15.0.1.13013-1 is affected.
Version 15.0.1.13014-1 is affected.
Version 15.0.1.13015-1 is affected.
Version 15.0.1.13016-1 is affected.
Version 15.0.1.13017-1 is affected.
Version 15SU3a is affected.
Version 14SU5 is affected.
Version 15SU4 is affected.
Version 15SU4a is affected.
Version 14SU6 is affected.

Cisco Unified Communications Manager IM and Presence Service:

Version 14 is affected.
Version 14SU1 is affected.
Version 14SU2 is affected.
Version 14SU2a is affected.
Version 14SU3 is affected.
Version 15 is affected.
Version 15SU1 is affected.
Version 14SU4 is affected.
Version 15SU2 is affected.
Version 15SU3 is affected.
Version 14SU5 is affected.
Version 15SU4 is affected.
Version 14SU6 is affected.

Cisco Unity Connection: