CVE-2023-40661: Opensc Project Opensc

Medium severity, CVSS 6.4. EPSS: 1.3% chance of exploitation in the next 30 days.

Several memory vulnerabilities were identified within the OpenSC packages, particularly in the card enrollment process using pkcs15-init when a user or administrator enrolls cards. To take advantage of these flaws, an attacker must have physical access to the computer system and employ a custom-crafted USB device or smart card to manipulate responses to APDUs. This manipulation can potentially allow compromise key generation, certificate loading, and other card management operations during enrollment.

Affected products

• Opensc Project Opensc: up to and including 0.23.0
• Red Hat Enterprise Linux: version 8.0 only; version 9.0 only

Published 2023-11-06. Last modified 2026-06-17.