CVE-2025-49010: Opensc Project Opensc

Medium severity, CVSS 6.8. EPSS: 0.1% chance of exploitation in the next 30 days.

OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, an attacker with physical access to the computer at the time user or administrator uses a token can cause a stack-buffer-overflow write in GET RESPONSE. The attack requires crafted USB device or smart card that would present the system with specially crafted responses to the APDUs. This issue has been patched in version 0.27.0.

Affected products

• Opensc Project Opensc: before 0.27.0 (fixed in 0.27.0)

Published 2026-03-30. Last modified 2026-06-17.