CVE-2026-40510

OpenSC before 0.27.0-rc1, fixed in commit 3f24f0b, contains a stack buffer overflow vulnerability in piv_process_history() in src/libopensc/card-piv.c that allows physically present attackers to trigger memory corruption by presenting a crafted PIV smart card or USB device returning a URL field longer than 118 bytes in the Key History Object ASN.1 response.

CVSS v3 3.8 LOW

3.8^/10

CVSS v3 : LOW

Vector :

Exploitability : 0.4 / Impact : 3.4

Attack Vector PHYSICAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/OpenSC/OpenSC/commit/3f24f0b48a481a8cf2e46059d8238a283ddc1c13	Patch
https://github.com/OpenSC/OpenSC/pull/3558	Issue Tracking Patch
https://www.vulncheck.com/advisories/opensc-stack-buffer-overflow-via-piv-process-history-in-card-piv-c	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-29 14:16

Updated : 2026-07-21 12:10

NVD link : CVE-2026-40510

Mitre link : CVE-2026-40510

CVE.ORG link : CVE-2026-40510

JSON object : View

Products Affected

opensc_project

opensc

CWE

CWE-121

Stack-based Buffer Overflow

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