{"id":"CVE-2026-116738","revision":null,"records":[{"revision":"5a30e1d69c184653bf147df7d6ea9509","observedAt":"2026-10-27T15:44:06.157+00:00","statement":{"source":"cve-program","id":"CVE-2026-116738","aliases":[],"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.","state":0,"publishedAt":"2026-10-26T21:52:37.804+00:00","modifiedAt":"2026-10-27T14:16:56.633+00:00","affected":[{"ecosystem":"Vendor product","name":"vmime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"kisli\",\n                    \"product\": \"vmime\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThanOrEqual\": \"0.9.2\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/kisli/vmime\",\n                    \"repo\": \"https://github.com/kisli/vmime\"\n                }"}],"metrics":[{"system":"CVSS 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","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116738","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-116738","identifiers":["CVE-2026-116738"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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