Medium severity · published Jan 16, 2026
CVE-2025-24531
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…
6.7
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Local
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
pam_pkcs11 · OpenSC project
0.6.12 before 0.6.13 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-24531
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-24531
github.com
https://github.com/OpenSC/pam_pkcs11/releases
github.com
https://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-7mf6-rg36-qgch
www.openwall.com
https://www.openwall.com/lists/oss-security/2025/02/06/3
www.openwall.com
http://www.openwall.com/lists/oss-security/2025/02/06/3
www.openwall.com
http://www.openwall.com/lists/oss-security/2025/02/06/7