{"id":"CVE-2026-24515","state":"PUBLISHED","title":"In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.","description":"In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.","publishedAt":"2026-01-23T07:46:36.397Z","updatedAt":"2026-06-02T13:01:10.268Z","severity":{"score":2.9,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"mitre"},"assigner":"mitre","products":["libexpat project libexpat"],"affected":[{"vendor":"libexpat project","product":"libexpat","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.7.4","versionType":"semver"}]}],"references":["https://github.com/libexpat/libexpat/pull/1131","https://cert-portal.siemens.com/productcert/html/ssa-253495.html"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/24xxx/CVE-2026-24515.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-24515","state":"PUBLISHED","datePublished":"2026-01-23T07:46:36.397Z","dateUpdated":"2026-06-02T13:01:10.268Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-01-23T07:46:36.099Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data."}],"affected":[{"vendor":"libexpat project","product":"libexpat","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.7.4","versionType":"semver"}]}],"references":[{"url":"https://github.com/libexpat/libexpat/pull/1131"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":2.9,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","description":"CWE-476 NULL Pointer Dereference","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-01-23T07:53:00.374Z"},"x_generator":{"engine":"CVE-Request-form 0.0.1"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*","versionEndExcluding":"2.7.4"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-23T15:31:37.399635Z","id":"CVE-2026-24515","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-23T15:31:51.679Z"}},{"affected":[{"vendor":"Siemens","product":"RUGGEDCOM RST2428P","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"V4.0","versionType":"custom"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-253495.html"}],"providerMetadata":{"shortName":"siemens-SADP","orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","dateUpdated":"2026-06-02T13:01:10.268Z"},"x_adpType":"supplier"}]}}}