{"schema":"threatline.record/2","record":{"id":"CVE-2026-103531","aliases":[],"summary":"OpenSC card-setcos.c setcos_construct_fci_44 stack-based overflow","details":"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.","categories":["Unclassified"],"product":"OpenSC","vendor":"n/a","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103531","source_modified_at":"2026-10-05T23:57:51.416Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"OpenSC","vendor":"n/a","versions":[{"version":"0.27.0","status":"affected"},{"version":"0.27.1","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":5.1,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00194,"percentile":0.08635,"score_date":"2026-10-23"},"published_at":"2026-10-01T00:45:15.812Z","modified_at":"2026-10-05T23:57:51.416Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103531","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-05T23:57:51.416Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-103531","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://vuldb.com/vuln/412343","tags":["vdb-entry","technical-description"]},{"source":"CVE List","url":"https://vuldb.com/vuln/412343/cti","tags":["signature","permissions-required"]},{"source":"CVE List","url":"https://vuldb.com/cve/CVE-2026-103531","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://vuldb.com/submit/956910","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://github.com/OpenSC/OpenSC/pull/3812","tags":["issue-tracking","patch"]},{"source":"CVE List","url":"https://github.com/OpenSC/OpenSC/commit/ad730304052937c32b4eb489a06835ac6123632c","tags":["patch"]},{"source":"CVE List","url":"https://github.com/OpenSC/OpenSC/","tags":["product"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-05T23:57:41.325085Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-05T23:57:51.416Z","content_hash":"4aca08f31b8fd38f06336ba885e6fd840b5101e691d86d89a217834658bb7ae3"}}