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.
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-62291.json"