#VU110234 Improper restriction of communication channel to intended endpoints in Cisco Systems, Inc products - CVE-2025-20261

Vulnerability identifier: #VU110234

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2025-20261

CWE-ID: CWE-923

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
UCS B-Series Blade Servers
UCS S-Series Storage Servers
UCS X-Series Modular System
UCS C-Series Rack Servers
Cisco Integrated Management Controller
Cisco Unified Computing System
Cisco Intersight Server

Software vendor:
Cisco Systems, Inc

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient restrictions on access to internal services in the SSH connection handling. A remote user can use specially crafted syntax and access internal services with elevated privileges.

Install updates from vendor's website.

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-ssh-priv-esc-2mZDtdjM