CVE-2025-62291
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.9%
exploitation probability
0.9%top 44% of all CVEs
observed exploitation
nono source reports it
In the eap-mschapv2 plugin (client-side) in strongSwan before 6.0.3, a malicious EAP-MSCHAPv2 server can send a crafted message of size 6 through 8, and cause an integer underflow that potentially results in a heap-based buffer overflow.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
strongSwan · strongSwanReferences
https://github.com/strongswan/strongswan/commits/master/src/libcharon/plugins/eap_mschapv2https://github.com/strongswan/strongswan/releaseshttps://lists.debian.org/debian-lts-announce/2025/11/msg00002.htmlhttps://www.strongswan.org/blog/2025/10/27/strongswan-vulnerability-%28cve-2025-62291%29.html