{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116743","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-26T20:23:36.768Z","datePublished":"2026-10-26T21:52:42.185Z","dateUpdated":"2026-10-26T21:52:42.185Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-26T21:52:42.185Z"},"datePublic":"2026-10-22T00:00:00.000Z","title":"libyal libmsiecf through 20260525 Double Free via libmsiecf_url_values_read_data","descriptions":[{"lang":"en","value":"libyal libmsiecf through 20260525 contains a double free vulnerability in libmsiecf_url_values_read_data() that allows attackers to corrupt heap memory via crafted partial URL records. Attackers can supply a crafted MSIE cache index.dat file whose recovered partial record has an oversized unknown_offset, crashing forensic tools processing it."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Double Free","cweId":"CWE-415","type":"CWE"}]}],"affected":[{"vendor":"libyal","product":"libmsiecf","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"custom","lessThanOrEqual":"20260525"}],"packageURL":"pkg:github/libyal/libmsiecf","repo":"https://github.com/libyal/libmsiecf"}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/libyal/libmsiecf/issues/6","tags":["issue-tracking"],"name":"GitHub Issue #6"},{"url":"https://github.com/libyal/libmsiecf","tags":["product"]},{"url":"https://github.com/libyal/libmsiecf/commit/a99a703d190d62f6c21b6225cf84ce80037e45d5","tags":["patch"]},{"url":"https://github.com/libyal/libmsiecf/blob/20260525/libmsiecf/libmsiecf_url_values.c#L824","tags":["technical-description"]},{"url":"https://hackmd.io/@haindpwn/libmsiecf-url-record-partial-recovery-double-free","tags":["third-party-advisory"]},{"name":"VulnCheck Advisory: libyal libmsiecf through 20260525 Double Free via libmsiecf_url_values_read_data","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/libyal-libmsiecf-through-20260525-double-free-via-libmsiecf-url-values-read-data"}],"credits":[{"lang":"en","value":"HaiND from the Post and Telecommunication Institute of Technology","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}