CVE-2026-76477: Cisco Unified Communications Products Hardening Release: October 2026 - Injection 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-2026-76477 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.
Affected Software
Event History
Frequently Asked Questions
Which products are in scope?
The affected product families are Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager, Unified CM IM & Presence Service, Unified CM Session Management Edition, and Cisco Unity Connection.
What access does an attacker need?
The supplied vector indicates network reachability, low attack complexity, no user interaction, and low privileges are required. It does not describe the specific privilege level, interface, or authentication path involved.
What is the potential impact if exploited?
The supplied severity vector rates confidentiality, integrity, and availability impact as high, with scope unchanged. The underlying weakness is SQL injection caused by improper neutralization of special elements used in SQL commands.
Are affected default configurations, fixed versions, or temporary mitigations identified?
No affected versions, default-configuration status, fixed releases, or workaround details are provided in the available data. The issue is described as addressed through Cisco hardening releases.