What is CVE-2021-32586?

CVE-2021-32586 is a high-severity vulnerability in Fortinet Fortimail, classified under Improper Input Validation. CVSS score: 7.7/10. Published 2022-03-01.

How severe is CVE-2021-32586?

High severity. CVSS v3 base score is 7.7 out of 10.

Improper input validation in Fortinet Fortimail

CVE-2021-32586

An improper input validation vulnerability in the web server CGI facilities of FortiMail before 7.0.1 may allow an unauthenticated attacker to alter the environment of the underlying script interpreter via specifically crafted HTTP requests.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2022-03-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.011 (63.9th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Fortinet Fortimail — versions 7.0.0
Fortinet Fortimail — versions FortiMail before 7.0.1

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

fortiguard.com/psirt/FG-IR-21-008 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-32586?: CVE-2021-32586 is a high-severity vulnerability in Fortinet Fortimail, classified under Improper Input Validation. CVSS score: 7.7/10. Published 2022-03-01.
How severe is CVE-2021-32586?: High severity. CVSS v3 base score is 7.7 out of 10.