Home/CVE/OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, an attacker with physical access to t
CVE

CVE-2025-66215

OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, an attacker with physical access to t

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.

LOW · CVSS 3.8 EPSS 0.0002
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0

Weakness Classification

Affected Products & Versions

1

Scoring & Timeline

3.8
LOW · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD30 Mar 2026 · 06:16 PM
CVSS VectorCVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

Vendor Advisories

5
suse-csafSUSE-SU-2026:21283-1
suse-csafSUSE-SU-2026:21320-1
suse-csafSUSE-SU-2026:1477-1
suse-csafopenSUSE-SU-2026:10475-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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