{"id":"CVE-2025-13763","state":"PUBLISHED","title":"Libopensc: opensc: multiple uses of uninitialized variable","description":"Multiple uses of uninitialized variables were found in libopensc that may lead to information disclosure or application crash. An attack requires a crafted USB device or smart card that would present the system with specially crafted responses to the APDUs","publishedAt":"2026-04-23T12:27:41.820Z","updatedAt":"2026-06-30T06:49:30.039Z","severity":{"score":5.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H","source":"redhat"},"assigner":"redhat","products":["OpenSC OpenSC","Red Hat Red Hat Enterprise Linux 10","Red Hat Red Hat Enterprise Linux 7","Red Hat Red Hat Enterprise Linux 8","Red Hat Red Hat Enterprise Linux 9"],"affected":[{"vendor":"OpenSC","product":"OpenSC","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.27.0","versionType":"semver"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","packageName":"opensc","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","packageName":"opensc","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","packageName":"opensc","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","packageName":"opensc","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"]}],"references":["https://access.redhat.com/security/cve/CVE-2025-13763","https://bugzilla.redhat.com/show_bug.cgi?id=2417581","https://github.com/OpenSC/OpenSC/security/advisories/GHSA-2v44-fq35-98vv","https://github.com/OpenSC/OpenSC/wiki/CVE-2025-13763"],"weaknesses":["CWE-457"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/13xxx/CVE-2025-13763.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-13763","state":"PUBLISHED","datePublished":"2026-04-23T12:27:41.820Z","dateUpdated":"2026-06-30T06:49:30.039Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2025-11-27T14:35:05.731Z"},"containers":{"cna":{"title":"Libopensc: opensc: multiple uses of uninitialized variable","descriptions":[{"lang":"en","value":"Multiple uses of uninitialized variables were found in libopensc that may lead to information disclosure or application crash. An attack requires a crafted USB device or smart card that would present the system with specially crafted responses to the APDUs"}],"affected":[{"vendor":"OpenSC","product":"OpenSC","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.27.0","versionType":"semver"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","packageName":"opensc","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","packageName":"opensc","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","packageName":"opensc","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","packageName":"opensc","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2025-13763","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2417581","name":"RHBZ#2417581","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://github.com/OpenSC/OpenSC/security/advisories/GHSA-2v44-fq35-98vv"},{"url":"https://github.com/OpenSC/OpenSC/wiki/CVE-2025-13763"}],"metrics":[{"other":{"content":{"value":"Low","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"PHYSICAL","availabilityImpact":"HIGH","baseScore":5.7,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"format":"CVSS"}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2026-06-30T06:49:30.039Z"},"datePublic":"2026-04-23T12:09:46.867Z","workarounds":[{"lang":"en","value":"To mitigate this issue, avoid connecting untrusted USB devices or smart cards to systems running affected versions of Red Hat Enterprise Linux. This operational control reduces the risk of an attacker presenting a specially crafted device to exploit the uninitialized variable flaws in `libopensc`."}],"timeline":[{"lang":"en","time":"2025-11-27T14:28:07.219Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-04-23T12:09:46.867Z","value":"Made public."}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/OpenSC/OpenSC/security/advisories/GHSA-2v44-fq35-98vv","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-23T14:04:28.240123Z","id":"CVE-2025-13763","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-457","type":"CWE","lang":"en","description":"CWE-457 Use of Uninitialized Variable"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-23T14:05:23.182Z"}}]}}}