CVE-2026-40510

opensc: OpenSC: Memory corruption via crafted PIV smart card

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Severity

Moderate

Red Hat Product Security

6.3

CVSS 3.1

Review impact separately from score.

Published · May 29, 2026

Updated · July 3, 2026

Description

A flaw was found in OpenSC. A physically present attacker can exploit a stack buffer overflow vulnerability in the piv_process_history() function by presenting a specially crafted Personal Identity Verification (PIV) smart card or USB device. This can lead to memory corruption within the system, potentially causing instability or unexpected behavior.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.3
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')