Is CVE-2021-32591 being actively exploited?

CVE-2021-32591 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2021-32591?

CVE-2021-32591 has a CVSS 3.1 base score of 5.3 (MEDIUM).

CVE-2021-32591

MEDIUM · CVSS 5.3EPSS 0.9%EU EUVD

A missing cryptographic steps vulnerability in the function that encrypts users' LDAP and RADIUS credentials in FortiSandbox before 4.0.1, FortiWeb before 6.3.12, FortiADC before 6.2.1, FortiMail 7.0.1 and earlier may allow an attacker in possession of the password store to compromise the confidentiality of the encrypted secrets.

Key facts

CVSS score: 5.3 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS score: 0.9% (60th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2021-19431)
Published: December 8, 2021
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-19431 in the EU Vulnerability Database. Last updated in EUVD on October 25, 2024.

View on the EU Vulnerability Database

Affected products

fortinet / fortiadc
fortinet / fortiadc
fortinet / fortiadc
fortinet / fortimail
fortinet / fortimail
fortinet / fortimail
fortinet / fortisandbox
fortinet / fortisandbox
fortinet / fortiweb
fortinet / fortiweb
fortinet / fortiweb

Certified products that may be affected

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

FortiMail 7.4 - Fortinet, Inc. - Common Criteria CCEVS-VR-VID-11462-2024 - archived
FortiMail 6.0 - Fortinet, Inc. - FIPS 140 3380 - historical
FortiMail-2000E/3000E - Fortinet, Inc. - FIPS 140 3363 - historical
Fortinet FortiMail 6.0 - Fortinet, Inc. - Common Criteria CCEVS-VR-10899-2019 - archived
FortiMail 5.2 - Fortinet, Inc. - FIPS 140 2539 - historical

See all 7 in the Security Certifications Explorer.

References

https://fortiguard.com/advisory/FG-IR-20-222(Patch, Vendor Advisory)

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

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