{
  "cveId": "CVE-2026-103531",
  "url": "https://patchblox.com/security/cve/CVE-2026-103531",
  "summary": "CVE-2026-103531 is fixed in opensc on 1 platform by DEBIAN-CVE-2026-103531 (version 0.27.1-3), released October 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "OpenSC card-setcos.c setcos_construct_fci_44 stack-based overflow",
  "description": "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.",
  "published": "2026-10-01T01:16:35Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cwe": "Stack-based Buffer Overflow",
  "epss": 0.00194,
  "epssPercentile": 0.09186,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-103531",
  "fixes": [
    {
      "platform": "linux",
      "product": "opensc",
      "release": "Debian 14",
      "fixedVersion": "0.27.1-3",
      "fix": "DEBIAN-CVE-2026-103531",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-103531",
      "released": "2026-10-10T22:48:57Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}