CVE-1999-1301: Freebsd

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

A design flaw in the Z-Modem protocol allows the remote sender of a file to execute arbitrary programs on the client, as implemented in rz in the rzsz module of FreeBSD before 2.1.5, and possibly other programs.

Affected products

• Freebsd Freebsd: up to and including 2.1.5

Published 1996-07-16. Last modified 2026-06-16.