🛡️ CVE-2023-40660
🟡 CVSS 6.6 — Medium ✅ No Known Exploit CWE-287 NVD
6.6
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A flaw was found in OpenSC packages that allow a potential PIN bypass. When a token/card is authenticated by one process, it can perform cryptographic operations in other processes when an empty zero-length pin is passed. This issue poses a security risk, particularly for OS logon/screen unlock and for small, permanently connected tokens to computers. Additionally, the token can internally track login status. This flaw allows an attacker to gain unauthorized access, carry out malicious actions, or compromise the system without the user's awareness.

Details

Severity MEDIUM
CVSS Score 6.6
CVSS Vector CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-287
Public Exploit ✅ No
Source NVD
Published 2023-11-06
Updated 2026-06-08
Modified 2025-11-03
Fix URL N/A

Affected Packages

Software From version Fixed in
enterprise-linux
opensc 0.23.0

References

Similar Threats

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