Vulnerability · Published Jul 2, 2025 · Assigned by cisco

CVE-2025-20309Cisco Unified Communications Manager Static SSH Credentials Vulnerability

Critical 10.0

In plain English

A critical-severity hard-coded credentials in Cisco Unified Communications Manager from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)1.2%top 32.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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 products (as reported)

VendorProductVersions
Cisco Cisco Unified Communications Manager 15.0.1.13010-115.0.1.13011-115.0.1.13012-115.0.1.13013-115.0.1.13014-115.0.1.13015-115.0.1.13016-115.0.1.13017-1

Weakness: CWE-798 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References