SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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 by sending a request with a crafted cookie header.

MEDIUM 5.3EPSS 2.11%

Does this matter?

Lower severity and a low EPSS score (2.11%). Track it; it rarely justifies an emergency change on its own.

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 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
2.11% probability · 82th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-787
Affected
fortinet/fortiweb
Source
psirt@fortinet.com
EPSS trend
0%3%5%26 October 2026: 2.11%26 October 202626 October 2026

EPSS 2.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.