#VU115171 Double free in libssh - CVE-2025-5351

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Main Vulnerability Database Vulnerabilities #VU115171

#VU115171 Double free in libssh - CVE-2025-5351

Published: September 12, 2025


Vulnerability identifier: #VU115171
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-5351
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
libssh
Software vendor:
libssh

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the internal function responsible for converting cryptographic keys into serialized formats. A remote user can trigger a double free error and perform a denial of service attack in low-memory scenarios.


Remediation

Install updates from vendor's website.

External links