{"id":"CVE-2026-111146","published":"2026-10-15T19:17:29.040","lastModified":"2026-10-16T18:25:45.343","description":"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.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","cwes":["CWE-125"],"vendors":[],"products":[],"references":[{"url":"https://github.com/Yeraze/ytnef","tags":[]},{"url":"https://github.com/Yeraze/ytnef/blob/d9f089144414d3b0912c29ab96f8f1c591d00319/lib/ytnef.c#L1449-L1458","tags":[]},{"url":"https://github.com/Yeraze/ytnef/blob/d9f089144414d3b0912c29ab96f8f1c591d00319/lib/ytnef.c#L1605-L1614","tags":[]},{"url":"https://github.com/Yeraze/ytnef/issues/112","tags":[]},{"url":"https://hackmd.io/@haind-pwn/ytnef-decompressrtf-oob-read","tags":[]},{"url":"https://www.vulncheck.com/advisories/ytnef-through-2.1.2-heap-out-of-bounds-read-via-mapiprint-in-lib-ytnef-c","tags":[]}],"exploitRefs":[{"url":"https://github.com/Yeraze/ytnef","tags":[]},{"url":"https://github.com/Yeraze/ytnef/blob/d9f089144414d3b0912c29ab96f8f1c591d00319/lib/ytnef.c#L1449-L1458","tags":[]},{"url":"https://github.com/Yeraze/ytnef/blob/d9f089144414d3b0912c29ab96f8f1c591d00319/lib/ytnef.c#L1605-L1614","tags":[]},{"url":"https://github.com/Yeraze/ytnef/issues/112","tags":[]}],"hasPoc":true,"ai":null}