CVE-2026-40510

LOW SEVERITY

CVSS Score & Metrics

Base Score

3.8 / 10

Vector String

                                        CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L                                    

Vulnerability Description

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.

Vulnerability Details

Published Date

May 29, 2026

Last Modified

June 03, 2026

CWE ID

CWE-121

Source

NVD

Vendor

OpenSC

Product

OpenSC

External References

https://github.com/OpenSC/OpenSC/commit/3f24f0b48a481a8cf2e46059d8238a283ddc1c13
https://github.com/OpenSC/OpenSC/pull/3558
https://www.vulncheck.com/advisories/opensc-stack-buffer-overflow-via-piv-process-history-in-card-piv-c

CVE-2026-40510

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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