CVE-2026-76475
Cisco Unified Communications Products Hardening Release: October 2026 - Cross-site Scripting Vulnerabilities
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-2026-76475 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.
Weakness: CWE-79
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Emergency Responder | Other Products | cna-assigner |
| Cisco | Cisco Unified Communications Manager | Other Products | cna-assigner |
| Cisco | Cisco Unity Connection | Other Products | cna-assigner |
Vendor-reported products (4)
- Cisco · Cisco Emergency Responder
- Cisco · Cisco Unified Communications Manager
- Cisco · Cisco Unified Communications Manager IM and Presence Service
- Cisco · Cisco Unity Connection
Vendor advisory
cisco-sa-voice-hardening-twgbH9e3
Cisco Unified Communications Products Security Hardening Release: October 2026
Cisco’s rating: Critical (advisory CVSS 9.8) · Published Oct 21, 2026
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from