CVE-2025-66215

EUVD-2025-209129
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.8 LOW
PHYSICAL
HIGH
NONE
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
GitHub_MCNA
3.8 LOW
PHYSICAL
HIGH
NONE
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
opensc-projectopensc
𝑥
< 0.27.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/OpenSC/OpenSC/commit/efd1d479832141bcf705c2f47655ada4d5f92f5d
https://github.com/OpenSC/OpenSC/pull/3436
https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5fc-cw56-hwp2
https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66215