#VU117683 Integer underflow in strongSwan - CVE-2025-62291
Published: October 27, 2025
Vulnerability identifier: #VU117683
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-62291
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
strongSwan
strongSwan
Software vendor:
strongswan.org
strongswan.org
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the eap-mschapv2 plugin when handling failure requests. A remote attacker can trick the victim into connecting to a malicious server, trigger an integer underflow and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.