{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103531", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-09-30T19:06:48.961Z", "datePublished": "2026-10-01T00:45:15.812Z", "dateUpdated": "2026-10-01T00:45:15.812Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-10-01T00:45:15.812Z"}, "title": "OpenSC card-setcos.c setcos_construct_fci_44 stack-based overflow", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-121", "lang": "en", "description": "Stack-based Buffer Overflow"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "n/a", "product": "OpenSC", "versions": [{"version": "0.27.0", "status": "affected"}, {"version": "0.27.1", "status": "affected"}], "cpes": ["cpe:2.3:a:opensc:opensc:*:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "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."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.1, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 5.5, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C"}}], "timeline": [{"time": "2026-09-30T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-09-30T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-09-30T21:11:57.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "zzxzzb (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/412343", "name": "VDB-412343 | OpenSC card-setcos.c setcos_construct_fci_44 stack-based overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/412343/cti", "name": "VDB-412343 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-103531", "name": "CVE-2026-103531 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/956910", "name": "Submit #956910 | OpenSC >= 0.12.2 up to and including 0.27.1 (latest release, unfixed; fix approved in PR #3812, pending merge) Buffer Overflow (stack, CWE-121)", "tags": ["third-party-advisory"]}, {"url": "https://github.com/OpenSC/OpenSC/pull/3812", "tags": ["issue-tracking", "patch"]}, {"url": "https://github.com/OpenSC/OpenSC/commit/ad730304052937c32b4eb489a06835ac6123632c", "tags": ["patch"]}, {"url": "https://github.com/OpenSC/OpenSC/", "tags": ["product"]}], "tags": ["x_open-source"], "x_generator": ["VulDB PVTS v202610"]}}}

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