RCE in Fortinet Fortiweb

CVE-2021-41018

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWeb version 6.4.1 and below, 6.3.15 and below allows attacker to execute unauthorized code or commands via crafted HTTP requests.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.033 (87.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-41018?
CVE-2021-41018 is a high-severity vulnerability in Fortinet Fortiweb, classified under OS Command Injection. CVSS score: 8.8/10. Published 2022-02-02.
How severe is CVE-2021-41018?
High severity. CVSS v3 base score is 8.8 out of 10.