CyberSecBulletin

OpenSC vulnerabilities

We track 3 vulnerabilities in OpenSC products across 2 products. 3 are rated high or critical, and none are known to be exploited. The most recent was published on May 29, 2026.

3vulnerabilities
1critical
2high
0exploited
8.0average CVSS score

Latest OpenSC vulnerabilities

  • 7.8 High severity

    OpenSC: Stack-based Buffer Overflow

    CVE-2026-40528OpenSC

    OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the do_key_value() function in src/pkcs15init/profile.c that allows attackers to corrupt memory by supplying a crafted profile configuration file. During p

  • 9.2 Critical severity

    pam_pkcs11: Improper Authentication

    CVE-2025-24032OpenSC

    PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. Prior to version 0.6.13, if cert_policy is set to none (the default value), then pam_pkcs11 will only check if the user is capable of logging into the token. An attacker

  • 7.1 High severity

    OpenSC: Out-of-bounds Read

    CVE-2023-2977OpenSC

    A vulnerbility was found in OpenSC. This security flaw cause a buffer overrun vulnerability in pkcs15 cardos_have_verifyrc_package. The attacker can supply a smart card package with malformed ASN1 context. The cardos_have_verifyrc_package function scans the AS