{"id":"CVE-2026-116738","state":"PUBLISHED","title":"VMime through 0.9.2 Stack-Based Buffer Overflow via uuencode Decoder","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.","publishedAt":"2026-10-26T21:52:37.804Z","updatedAt":"2026-10-27T14:16:56.633Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["kisli vmime"],"affected":[{"vendor":"kisli","product":"vmime","packageURL":"pkg:github/kisli/vmime","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.9.2","versionType":"custom"}],"repo":"https://github.com/kisli/vmime"}],"references":["https://github.com/kisli/vmime/pull/363","https://github.com/kisli/vmime/commit/e85925eddc638939f0eeb7ee55ec047d04a760d8","https://github.com/kisli/vmime","https://github.com/kisli/vmime/blob/v0.9.2/src/vmime/utility/encoder/uuEncoder.cpp#L185-L190","https://hackmd.io/@haindpwn/vmime-uuencode-decoder-oob-write","https://www.vulncheck.com/advisories/vmime-through-0.9.2-stack-based-buffer-overflow-via-uuencode-decoder"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116738.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116738","state":"PUBLISHED","datePublished":"2026-10-26T21:52:37.804Z","dateUpdated":"2026-10-27T14:16:56.633Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-26T20:23:36.081Z"},"containers":{"cna":{"title":"VMime through 0.9.2 Stack-Based Buffer Overflow via uuencode Decoder","descriptions":[{"lang":"en","value":"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. 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