{"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":"2026-10-05T23:57:51.416Z"},"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"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-05T23:57:41.325085Z","id":"CVE-2026-103531","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-05T23:57:51.416Z"}}]}}