CVE-2025-66215 | THREATINT

Description

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.

PUBLISHED Reserved 2025-11-24 | Published 2026-03-30 | Updated 2026-03-31 | Assigner GitHub_M

LOW: 3.8CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Problem types

CWE-121: Stack-based Buffer Overflow

Product status

< 0.27.0

affected

References

github.com/...OpenSC/security/advisories/GHSA-q5fc-cw56-hwp2

github.com/OpenSC/OpenSC/pull/3436

github.com/...ommit/efd1d479832141bcf705c2f47655ada4d5f92f5d

github.com/OpenSC/OpenSC/wiki/CVE-2025-66215

cve.org (CVE-2025-66215)

nvd.nist.gov (CVE-2025-66215)

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