CVE-2020-29019: Fortinet FortiWeb

Medium severity, CVSS 5.3. EPSS: 2.1% chance of exploitation in the next 30 days.

A stack-based buffer overflow vulnerability in FortiWeb 6.3.0 through 6.3.7 and version before 6.2.4 may allow a remote, unauthenticated attacker to crash the httpd daemon thread by sending a request with a crafted cookie header.

Affected products

• Fortinet FortiWeb: before 6.2.4 (fixed in 6.2.4); from 6.3.0, up to and including 6.3.7

Published 2021-01-14. Last modified 2026-06-17.