CVE-2026-116738 VMime through 0.9.2 Stack-Based Buffer Overflow via uuencode Decoder
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-116738?
CVE-2026-116738 is a high-severity vulnerability in kisli vmime, published on 26 Oct 2026.
Official 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.
Weakness: CWE-121
Which versions are affected by CVE-2026-116738?
How do I fix CVE-2026-116738?
No fix has been published for CVE-2026-116738 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-116738 being exploited?
There is no known exploitation of CVE-2026-116738 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-116738, GHSA-rhj9-fcgr-5r62.