PT-2026-29083 · Opensc · Opensc

Published 2026-03-30 · Updated 2026-03-30 · CVE-2025-66215

NVD

CVSS v3.1

3.8

Low

AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

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 card-oberthur. 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.

Exploit

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2025-66215

Affected Products

Opensc

References · 5

• 🔥 https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66215 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-66215 · Security Note
• https://github.com/OpenSC/OpenSC/pull/3436 · Note
• https://github.com/OpenSC/OpenSC/commit/efd1d479832141bcf705c2f47655ada4d5f92f5d · Note
• https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5fc-cw56-hwp2 · Note