CVE-2026-103531: OpenSC card-setcos.c setcos_construct_fci_44 stack-based overflow

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C

Exploit Status

Not Exploited

Patch Tuesday

2026-Oct

Released

2026-10-02

EPSS Score

0.19% (percentile: 8.2%)

Affected Products (1)

Other

• 21490-17084

Revision History

• 2026-10-02: Information published.