CVE-2018-1000101: Mingw-w64

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination (CWE-170) vulnerability in mingw-w64-crt (libc)->(v)snprintf that can result in The bug may be used to corrupt subsequent string functions. This attack appear to be exploitable via Depending on the usage, worst case: network.

Affected products

• Mingw-w64 Mingw-w64: up to and including 5.0.3

Published 2018-03-06. Last modified 2026-06-17.