CVE-2026-103531

A flaw was found in OpenSC. A stack-based buffer overflow vulnerability exists in the SetCOS smart card driver during the handling of file control information in the setcos_construct_fci_44 function. By supplying manipulated card attributes, an attacker could trigger memory corruption, potentially leading to arbitrary code execution or an application crash resulting in a Denial of Service (DoS).

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 for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.