Man-in-the-Middle (MitM) attack in OpenSSH - CVE-2025-26465

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU104035

Man-in-the-Middle (MitM) attack in OpenSSH - CVE-2025-26465

Published: February 18, 2025 / Updated: February 18, 2025


Vulnerability identifier: #VU104035
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-26465
CWE-ID: CWE-300
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: OpenSSH
Affected software:
OpenSSH

Detailed vulnerability description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to incorrect processing of user-supplied data in ssh(1). A remote attacker can perform server impersonation when VerifyHostKeyDNS enabled.


How to mitigate CVE-2025-26465

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources