CVE-2025-66215: low-severity vulnerability in OpenSC
OpenSC: Stack-buffer-overflow WRITE in card-oberthur
Published · Updated
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8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.8epss 0.2%
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.
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Affected products
OpenSC · OpenSCRelated CVEs — OpenSC
In the same product, most dangerous first.
CVE-2026-40510LOWOpenSC < 0.27.0-rc1 Stack Buffer Overflow via piv_process_history() in card-piv.cEPSS 0.3%CVE-2025-66038LOWOpenSC: `sc_compacttlv_find_tag` can return out-of-bounds pointersEPSS 0.3%CVE-2025-13763MEDIUMLibopensc: opensc: multiple uses of uninitialized variableEPSS 0.3%CVE-2025-66037LOWOpenSC: Out of Bounds vulnerabilityEPSS 0.3%CVE-2026-40528LOWOpenSC < 0.27.0 Buffer Overrun in do_key_value() via profile.cEPSS 0.2%CVE-2025-49010LOWOpenSC: Stack-buffer-overflow WRITE in GET RESPONSEEPSS 0.1%