CVE-2020-29016

9.8 criticalEPSS 3.4%

Critical (9.8) in fortinet fortiweb. EPSS 3.4% chance of exploitation in the next 30 days.

A stack-based buffer overflow vulnerability in FortiWeb 6.3.0 through 6.3.5 and version before 6.2.4 may allow an unauthenticated, remote attacker to overwrite the content of the stack and potentially execute arbitrary code by sending a crafted request with a large certname.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 3.4% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2021-01-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fortinet:fortiweb

References

https://www.fortiguard.com/psirt/FG-IR-20-125
https://www.fortiguard.com/psirt/FG-IR-20-125

Check your stack JSON