CVE-2021-41019

6.5 mediumEPSS 0.6%

Medium (6.5) in fortinet fortios. EPSS 0.6% chance of exploitation in the next 30 days.

An improper validation of certificate with host mismatch [CWE-297] vulnerability in FortiOS versions 6.4.6 and below may allow the connection to a malicious LDAP server via options in GUI, leading to disclosure of sensitive information, such as AD credentials.

Severity

CVSS 3.1

6.5 medium

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)
CWE: CWE-295
Published: 2021-11-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fortinet:fortios

References

https://fortiguard.com/advisory/FG-IR-21-074
https://fortiguard.com/advisory/FG-IR-21-074

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