Is CVE-2021-36179 being actively exploited?

CVE-2021-36179 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2021-36179?

CVE-2021-36179 has a CVSS 3.1 base score of 8.0 (HIGH).

CVE-2021-36179

HIGH · CVSS 8.0EPSS 1.6%EU EUVD

A stack-based buffer overflow in Fortinet FortiWeb version 6.3.14 and below, 6.2.4 and below allows attacker to execute unauthorized code or commands via crafted parameters in CLI command execution

Key facts

CVSS score: 8.0 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
EPSS score: 1.6% (76th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2021-22800)
Published: September 8, 2021
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-22800 in the EU Vulnerability Database. Last updated in EUVD on October 25, 2024.

View on the EU Vulnerability Database

Affected products

fortinet / fortiweb

Certified products that may be affected

3 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

FortiWeb 5.6 - Fortinet, Inc. - FIPS 140 3103 - historical
FortiWeb-3000E/4000E - Fortinet, Inc. - FIPS 140 3104 - historical
Fortinet Fortiweb 5.6 - Fortinet, Inc. - Common Criteria 383-4-425 - archived

References

https://fortiguard.com/advisory/FG-IR-20-206(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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