Critical Cisco Vulnerability in Unified CM Grants Root Access via Static Credentials The Hacker [email protected] (The Hacker News)

July 2, 2025

Cisco has released security updates to address a maximum-severity security flaw in Unified Communications Manager (Unified CM) and Unified Communications Manager Session Management Edition (Unified CM SME) that could permit an attacker to login to a susceptible device as the root user, allowing them to gain elevated privileges.
The vulnerability, tracked as CVE-2025-20309, carries a CVSS score Cisco has released security updates to address a maximum-severity security flaw in Unified Communications Manager (Unified CM) and Unified Communications Manager Session Management Edition (Unified CM SME) that could permit an attacker to login to a susceptible device as the root user, allowing them to gain elevated privileges.
The vulnerability, tracked as CVE-2025-20309, carries a CVSS score 

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Tech Jacks
Derrick Jackson is a IT Security Professional with over 10 years of experience in Cybersecurity, Risk, & Compliance and over 15 Years of Experience in Enterprise Information Technology

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