CVE-2018-17157: Freebsd

Critical severity, CVSS 9.8. EPSS: 24.2% chance of exploitation in the next 30 days.

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request. Unprivileged remote users with access to the NFS server may be able to execute arbitrary code.

Affected products

• Freebsd Freebsd: before 11.2 (fixed in 11.2); version 11.2 only

Published 2018-12-04. Last modified 2026-06-17.