CVE-2026-103531
mediumA flaw has been found in OpenSC up to 0.27.1.
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
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L Severity source: NVD CVSS v3.1 (cna@vuldb.com)
Timeline (UTC)
Published: 2026-10-01 01:16
Modified: 2026-10-06 01:16
NVD status: Deferred
Last synced 3 days ago
Verified against the source API 2026-10-27 06:56 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/OpenSC/OpenSC/ cna@vuldb.com
- https://github.com/OpenSC/OpenSC/commit/ad730304052937c32b4eb489a06835ac6123632c cna@vuldb.com
- https://github.com/OpenSC/OpenSC/pull/3812 cna@vuldb.com
- https://vuldb.com/cve/CVE-2026-103531 cna@vuldb.com
- https://vuldb.com/submit/956910 cna@vuldb.com
- https://vuldb.com/vuln/412343 cna@vuldb.com
- https://vuldb.com/vuln/412343/cti cna@vuldb.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:56 UTC · record ↗