{"id":"CVE-2026-116739","aliases":[],"title":"VMime through 0.9.2 Uninitialized Stack Memory Disclosure via uuencode Decoder","titleSource":"VulnCheck","descriptionSource":"VulnCheck","products":[{"vendor":"kisli","name":"vmime","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.9.2","versionType":"custom"}],"defaultStatus":"unaffected","source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-116739"}],"remediation":[],"description":"VMime through 0.9.2 contains an information disclosure vulnerability in the uuEncoder::decode function that writes uninitialized stack memory into decoded output for over-long lines. Attackers can send a crafted uuencode or x-uuencode MIME part with a large line length byte to leak up to 15 bytes of stack contents per line in decoded attachments.","severity":"medium","score":5.3,"published":"2026-10-26T21:52:38.496Z","modified":"2026-10-26T21:52:38.496Z","withdrawn":false,"knownExploited":false,"affected":[],"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#L311","https://hackmd.io/@haindpwn/vmime-uuencode-decoder-oob-write","https://www.vulncheck.com/advisories/vmime-through-0.9.2-uninitialized-stack-memory-disclosure-via-uuencode-decoder"],"sources":[{"name":"CVE","id":"CVE-2026-116739","modified":"2026-10-26T21:52:38.496Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116739"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":5.3},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","score":4.3}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T20:15:32.897Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}