{"id":"CVE-2026-116738","published":"2026-10-26T22:16:58.090","lastModified":"2026-10-26T22:16:58.090","description":"VMime through 0.9.2 contains an integer underflow in the uuEncoder::decode function that allows remote attackers to trigger a stack-based buffer overflow via crafted uuencoded MIME parts. Attackers can send an email with a uuencoded line whose length character is 'b' but is not a 'begin' line, corrupting stack memory to crash the application or potentially execute code.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwes":["CWE-121"],"vendors":[],"products":[],"references":[{"url":"https://github.com/kisli/vmime","tags":[]},{"url":"https://github.com/kisli/vmime/blob/v0.9.2/src/vmime/utility/encoder/uuEncoder.cpp#L185-L190","tags":[]},{"url":"https://github.com/kisli/vmime/commit/e85925eddc638939f0eeb7ee55ec047d04a760d8","tags":[]},{"url":"https://github.com/kisli/vmime/pull/363","tags":[]},{"url":"https://hackmd.io/@haindpwn/vmime-uuencode-decoder-oob-write","tags":[]},{"url":"https://www.vulncheck.com/advisories/vmime-through-0.9.2-stack-based-buffer-overflow-via-uuencode-decoder","tags":[]}],"exploitRefs":[{"url":"https://github.com/kisli/vmime","tags":[]},{"url":"https://github.com/kisli/vmime/blob/v0.9.2/src/vmime/utility/encoder/uuEncoder.cpp#L185-L190","tags":[]},{"url":"https://github.com/kisli/vmime/commit/e85925eddc638939f0eeb7ee55ec047d04a760d8","tags":[]},{"url":"https://github.com/kisli/vmime/pull/363","tags":[]}],"hasPoc":true,"ai":null}