CVE-2025-24531
Medium
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.
SeverityMedium
CVSS6.7
Exploit probability—
ProductOpensc Project Pam
PublishedJan 16, 2026
First seenJan 16, 2026
Weakness typeCWE-393CWE-393
How to fix
Update
- OpenSC project pam_pkcs110.6.13 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenSC project pam_pkcs11 | 0.6.12 ≤ v < 0.6.13 | 0.6.13 |
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