CVE-2025-20309: Cisco Unified Communications Manager Static SSH Credentials Vulnerability
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to log in to an affected device using the root account, which has default, static credentials that cannot be changed or deleted. This vulnerability is due to the presence of static user credentials for the root account that are reserved for use during development. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and execute arbitrary commands as the root user.
Affected Software
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Event History
Frequently Asked Questions
What is the severity of CVE-2025-20309?
CVE-2025-20309 is classified as a critical vulnerability due to the potential for unauthorized access to sensitive systems.
How do I fix CVE-2025-20309?
To remediate CVE-2025-20309, you should update Cisco Unified Communications Manager and Cisco Unified Communications Manager Session Management Edition to the latest patched version.
What systems are affected by CVE-2025-20309?
CVE-2025-20309 affects Cisco Unified Communications Manager and Cisco Unified Communications Manager Session Management Edition.
Can CVE-2025-20309 be exploited remotely?
Yes, CVE-2025-20309 can be exploited remotely by unauthenticated attackers to gain access.
What type of access does CVE-2025-20309 allow?
CVE-2025-20309 allows attackers to log in to affected devices using the root account with default credentials.