{"schema":"threatline.record/2","record":{"id":"CVE-2026-111146","aliases":[],"summary":"ytnef through 2.1.2 Heap Out-of-Bounds Read via MAPIPrint in lib/ytnef.c","details":"ytnef through 2.1.2 contains a heap out-of-bounds read vulnerability in MAPIPrint() that allows attackers to read past heap allocations by supplying compressed RTF properties. Attackers can deliver a crafted winmail.dat whose decompressed RTF lacks a NUL terminator, causing printf to over-read, crashing ytnefprint and leaking adjacent heap bytes.","categories":["Unclassified"],"product":"ytnef","vendor":"Yeraze","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111146","source_modified_at":"2026-10-15T19:45:21.657Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"ytnef","vendor":"Yeraze","versions":[{"version":"0","lessThanOrEqual":"2.1.2","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00129,"percentile":0.02261,"score_date":"2026-10-23"},"published_at":"2026-10-15T18:57:36.782Z","modified_at":"2026-10-15T19:45:21.657Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111146","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T19:45:21.657Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111146","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@haind-pwn/ytnef-decompressrtf-oob-read","tags":["technical-description","exploit"]},{"source":"CVE List","url":"https://github.com/Yeraze/ytnef/issues/112","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/Yeraze/ytnef/blob/d9f089144414d3b0912c29ab96f8f1c591d00319/lib/ytnef.c#L1449-L1458","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/Yeraze/ytnef/blob/d9f089144414d3b0912c29ab96f8f1c591d00319/lib/ytnef.c#L1605-L1614","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/Yeraze/ytnef","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/ytnef-through-2.1.2-heap-out-of-bounds-read-via-mapiprint-in-lib-ytnef-c","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-15T19:38:03.696767Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T19:45:21.657Z","content_hash":"0a91089927a38183085d19b95ab0b9e70071fec4679474316b1c81bb9d8ba337"}}