CVE-2021-26091
Fortimail vulnerability analysis and mitigation

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.


SourceNVD

Related Fortimail vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-32756CRITICAL9.8
  • FortimailFortimail
  • cpe:2.3:a:fortinet:fortindr
YesYesMay 13, 2025
CVE-2023-33302HIGH8.8
  • FortimailFortimail
  • cpe:2.3:a:fortinet:fortimail
NoYesMar 31, 2025
CVE-2021-26091HIGH7.5
  • FortimailFortimail
  • cpe:2.3:a:fortinet:fortimail
NoYesMar 24, 2025
CVE-2021-24008MEDIUM5.3
  • FortimailFortimail
  • cpe:2.3:a:fortinet:fortimail
NoYesMar 28, 2025
CVE-2024-40588MEDIUM4.4
  • FortimailFortimail
  • cpe:2.3:a:fortinet:fortimail
NoYesAug 12, 2025

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