CVE-2026-103531

A flaw has been found in OpenSC up to 0.27.1. The impacted element is the function setcos_construct_fci_44 of the file src/libopensc/card-setcos.c. Executing a manipulation of the argument type_attr can lead to stack-based buffer overflow. The attack can be launched remotely. This patch is called ad730304052937c32b4eb489a06835ac6123632c. It is best practice to apply a patch to resolve this issue.

CVSS v3 5.5 MEDIUM
CVSS v2.0 6.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/OpenSC/OpenSC/
https://github.com/OpenSC/OpenSC/commit/ad730304052937c32b4eb489a06835ac6123632c
https://github.com/OpenSC/OpenSC/pull/3812
https://vuldb.com/cve/CVE-2026-103531
https://vuldb.com/submit/956910
https://vuldb.com/vuln/412343
https://vuldb.com/vuln/412343/cti

Configurations

No configuration.

History

01 Oct 2026, 01:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-01 01:16

Updated : 2026-10-06 01:16

NVD link : CVE-2026-103531

Mitre link : CVE-2026-103531

CVE.ORG link : CVE-2026-103531

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

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