High severity8.8NVD Advisory· Published Oct 26, 2026
CVE-2026-116738
CVE-2026-116738
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.
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/kisli/vmime/blob/v0.9.2/src/vmime/utility/encoder/uuEncoder.cppnvd
- github.com/kisli/vmime/commit/e85925eddc638939f0eeb7ee55ec047d04a760d8nvd
- github.com/kisli/vmime/pull/363nvd
- hackmd.io/@haindpwn/vmime-uuencode-decoder-oob-writenvd
- www.vulncheck.com/advisories/vmime-through-0.9.2-stack-based-buffer-overflow-via-uuencode-decodernvd
News mentions
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