CVE-2025-24531

State: Published
Severity: 6.7 Medium
Published: Jan 16, 2026
Updated: Jan 16, 2026
Reserved: Jan 23, 2025

Description

In OpenSC pam_pkcs11 before 0.6.13, pam_sm_authenticate() wrongly returns PAM_IGNORE in many error situations (such as an error triggered by a smartcard before login), allowing authentication bypass.

Scores

CVSS	Score	Vector	Source
3.1	6.7 Medium	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N	mitre

Weaknesses

CWE-393 Return of Wrong Status Code

Affected Products

Product	Versions
pam_pkcs11OpenSC project	0.6.12 to before 0.6.13Affected

References

https://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-7mf6-rg36-qgch
https://github.com/OpenSC/pam_pkcs11/releases
https://www.openwall.com/lists/oss-security/2025/02/06/3
http://www.openwall.com/lists/oss-security/2025/02/06/3
http://www.openwall.com/lists/oss-security/2025/02/06/7

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