CVE-2025-49010

low-risk
Published 2026-03-30

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.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.8/10 Low
PHYSICAL / HIGH complexity

Affected Products (1)

Affected Vendors

Opensc Project

References (2)

Vendor Advisory https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5cf-5wmx-9wh4
Vendor Advisory https://github.com/OpenSC/OpenSC/wiki/CVE-2025-49010
15
/ 100
low-risk
Severity 10/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal