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Status published
Medium
CVE-2021-26091
A use of a cryptographically weak pseudo-random number generator vulnerability...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Fortinet
View all reports →Affected Software
FortiMail
Vulnerable Versions:
6.4.0, 6.2.0
Timeline
Official Publish:
March 24th, 2025
Last Modified:
March 31st, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.