CVE-2025-66215

3.8 LOW
Published: March 30, 2026 Modified: April 01, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/OpenSC/OpenSC/pull/3436
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5fc-cw56-hwp2
Source: security-advisories@github.com
Patch Vendor Advisory
https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66215
Source: security-advisories@github.com
Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
3.8 / 10.0
EPSS (Exploit Probability)
0.0%
5th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

opensc_project