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.

The AlmaLinux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1791470029 advisory.

  - 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.
    (CVE-2026-103531)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Rocky Linux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1791470029 advisory.

  - 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.
    (CVE-2026-103531)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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.
    (CVE-2026-103531)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
365100	AlmaLinux 9.6 [TuxCare] Security Update: opensc (ALMALINUX9.6:CLSA-2026:1791470029)	Nessus	Alma Linux Local Security Checks	Local	medium
365094	Rocky Linux 9.6 [TuxCare] Security Update: opensc (ALMALINUX9.6:CLSA-2026:1791470029)	Nessus	Rocky Linux Local Security Checks	Local	medium
359485	Linux Distros Unpatched Vulnerability : CVE-2026-103531	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-103531

medium

Tenable Plugins

medium

medium

medium