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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-62291 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/strongswan/strongswan/commits/master/src/libcharon/plugins/eap_mschapv2 MITRE
https://github.com/strongswan/strongswan/releases MITRE
https://lists.debian.org/debian-lts-announce/2025/11/msg00002.html CVE
https://www.strongswan.org/blog/2025/10/27/strongswan-vulnerability-%28cve-2025-62291%29.html MITRE

Weakness Enumeration

CWE-ID CWE Name Source
CWE-191 Integer Underflow (Wrap or Wraparound) MITRE  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-62291
NVD Published Date:
01/16/2026
NVD Last Modified:
01/16/2026
Source:
MITRE