High severity · published Jun 4, 2025
CVE-2025-20261
Cisco Integrated Management Controller Privilege Escalation Vulnerability
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability in the SSH connection handling of Cisco Integrated Management Controller (IMC) for Cisco UCS B-Series, UCS C-Series, UCS S-Series, and UCS X-Series Servers could allow an authenticated, remote attacker to access internal services with elevated privileges.
This vulnerability is due to insufficient restrictions on access to internal services. An attacker with a valid user account could exploit this vulnerability by using crafted syntax when connecting to the Cisco IMC of an affected device through SSH. A successful exploit could allow the attacker to access internal services with elevated privileges, which may allow unauthorized modifications to the system, including the possibility of creating new administrator accounts on the affected device.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CU
Cisco Unified Computing System (Managed) · Cisco
4.0(1a); 3.2(3n); 4.1(1a); 4.1(1b); 4.0(4h); 4.1(1c); +34 more · source: vendor
CU
Cisco Unified Computing System (Standalone) · Cisco
4.0(2g); 3.1(2i); 3.1(1d); 4.0(4i); 4.1(1c); 4.0(2c); +34 more · source: vendor
Affected product
CU
Cisco Unified Computing System (Managed)
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-20261
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-20261
sec.cloudapps.cisco.com
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-ssh-priv-esc-2mZDtdjM
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