Critical Cisco Vulnerability in Unified CM Grants Root Access via Static Credentials

CVE-2025-20309 USA SEVERITY-MEDIUM INCIDENT-VULNERABILITY YEAR-2025
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Summary

undefinedA security vulnerability has been disclosed. Severity level: medium.

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

Recommendations

â„šī¸ PROACTIVE MEASURES RECOMMENDED:
1. Review your security posture
2. Ensure patches are up to date
3. Monitor for related threats
4. Review security awareness training
5. Update threat intelligence feeds

Additional recommendations based on incident type:
1. Apply security patches immediately
2. Conduct vulnerability assessments
3. Review system configurations

Source: The Hacker News

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