CVE-2026-116738
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductKisli Vmime
PublishedOct 26, 2026
First seenOct 26, 2026
Weakness typeCWE-121CWE-121
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| kisli vmime | v ≤ 0.9.2 | — |
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