Medium severity · published Jan 14, 2021
CVE-2020-29019
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…
5.3
CVSS
2.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Fortiweb · Fortinet
before 6.2.4; 6.3.0 through 6.3.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-29019
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-29019
Vendor Advisory
https://www.fortiguard.com/psirt/FG-IR-20-126
More from Fortiweb
9.8
CVE-2026-24858
Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability
9.8
CVE-2025-64446
Fortinet FortiWeb Path Traversal Vulnerability
9.8
CVE-2025-25257
Fortinet FortiWeb SQL Injection Vulnerability
7.2
CVE-2025-58034
Fortinet FortiWeb OS Command Injection Vulnerability
9.8
CVE-2026-26035
An Improper Authentication vulnerability [CWE-287] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11, FortiWeb…