vulnerability
FreeBSD: VID-1f1cf967-b35c-11f0-bce7-bc2411002f50 (CVE-2025-62291): strongSwan -- Heap-based buffer overflow in eap-mschapv2 plugin due to improper handling of failure request packets
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Oct 27, 2025 | Dec 10, 2025 | Jan 27, 2026 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Oct 27, 2025
Added
Dec 10, 2025
Modified
Jan 27, 2026
Description
Xu Biang reports: The eap-mschapv2 plugin doesn't correctly check the length of an EAP-MSCHAPv2 Failure Request packet on the client, which can cause an integer underflow that leads to a crash and, depending on the compiler options, even a heap-based buffer overflow that's potentially exploitable for remote code execution. Affected are all strongSwan versions since 4.2.12.
Solution
freebsd-upgrade-package-strongswan
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