CVE-2020-29019

Name: CVE-2020-29019
Creator: NVD / NIST
Published: 2021-01-14T16:15:18.18+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 2.08%

Last modified Jun 17, 2026

CVE-2020-29019 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 2.08% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

2.08%

79.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Fortinet	Fortiweb	< 6.2.4
Fortinet	Fortiweb	>= 6.3.0, <= 6.3.7

References

https://www.fortiguard.com/psirt/FG-IR-20-126Vendor Advisory
https://www.fortiguard.com/psirt/FG-IR-20-126Vendor Advisory

Timeline

Published: Jan 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-29019?

How severe is CVE-2020-29019?

CVE-2020-29019 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.08% probability of exploitation in the next 30 days.

How do I fix CVE-2020-29019?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-29019?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST