CVE-2021-26091
published 2025-03-24CVE-2021-26091: 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…
PriorityP348high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.29%
21.3th percentile
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| fortinet | fortimail | — | — |
| fortinet | fortimail | >= 6.2.0 < 6.2.* | 6.2.* |
| fortinet | fortimail | >= 6.2.0 < 6.4.5 | 6.4.5 |
| fortinet | fortimail | 6.2.0 – 6.2.9 | — |
| fortinet | fortimail | 6.4.0 – 6.4.4 | — |
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GHSA
GHSA-pmxq-4hqc-9hr4: A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Based Encryption service of FortiM
ghsa_unreviewed·2025-03-24
CVE-2021-26091 [HIGH] CWE-338 GHSA-pmxq-4hqc-9hr4: A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Based Encryption service of FortiM
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.
Fortinet
A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Base...
vendor_fortinet·2025-03-24·CVSS 7.5
CVE-2021-26091 [HIGH] CWE-338 A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Base...
FG-IR-21-031: A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Base...
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.
CVEs: CVE-2021-26091
CWEs: CWE-338
CVSS: 7.5 (high)
Affected products: FortiMail
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-03-24
Published