CVE-2020-29018 Information disclosure in Fortinet FortiWeb

What is CVE-2020-29018?

CVE-2020-29018 is a high-severity vulnerability in Fortinet Fortiweb, published on 14 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A format string vulnerability in FortiWeb 6.3.0 through 6.3.5 may allow an authenticated, remote attacker to read the content of memory and retrieve sensitive data via the redir parameter.

Weakness: CWE-134

Which versions are affected by CVE-2020-29018?

It affects 1 product.

Products include Fortinet Fortiweb.

How do I fix CVE-2020-29018?

No fix has been published for CVE-2020-29018 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-29018 being exploited?

There is no known exploitation of CVE-2020-29018 in the wild and no public exploit code.

Other vulnerabilities in Fortinet Fortiweb

• CVE-2025-25257 Fortinet FortiWeb SQL Injection Exploited Critical 9.6
• CVE-2025-64446 Fortinet FortiWeb Path Traversal Exploited Critical 9.4
• CVE-2025-58034 Fortinet FortiWeb OS Command Injection Exploited Medium 6.7
• CVE-2020-29015 SQL injection in Fortinet FortiWeb Critical 9.8
• CVE-2020-29016 Memory corruption in Fortinet FortiWeb Critical 9.8

All Fortinet Fortiweb vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-53jq-rch4-w6wr.