AUGUST 4, 2026
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Case File

CVE-2021-26091

HIGH · CVSS 7.5 EPSS 0.29%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-03-24 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Exploitation may require the attacker to be authenticated.

CVE
CVE-2021-26091
Severity
HIGH
CVSS
7.5
EPSS
0.29%

Original NVD Description

A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Based Encryption service of FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to infer parts of users authentication tokens and reset their credentials.

Related CVEs

Other vulnerabilities affecting the same vendor(s)