CVE-2021-36166

CRITICAL

FortiMail < 7.0.1 - Authentication Token Brute-Force via System Property Observation

Title source: llm

Description

An improper authentication vulnerability in FortiMail before 7.0.1 may allow a remote attacker to efficiently guess one administrative account's authentication token by means of the observation of certain system's properties.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_confirm

https://fortiguard.com/psirt/FG-IR-21-028

Scores

CVSS v3 9.8

EPSS 0.0141

EPSS Percentile 69.2%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-330

Status published

Products (2)

fortinet/fortimail 7.0.0

fortinet/fortimail < 5.4.12

Published Mar 01, 2022

Tracked Since Feb 18, 2026