What’s Vulnerable › Vulnerabilities
CVE-2021-36171
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2022-03-01 · updated 2026-06-17
- Weakness: CWE-338
Description
The use of a cryptographically weak pseudo-random number generator in the password reset feature of FortiPortal before 6.0.6 may allow a remote unauthenticated attacker to predict parts of or the whole newly generated password within a given time frame.
Affected products
- Fortinet FortiPortal: through 4.0.4; from 4.1.0 through 4.1.2; from 4.2.0 through 4.2.4; from 5.0.0 through 5.0.3; from 5.1.0 through 5.1.2; from 5.2.0 before 5.2.7 — fixed in 5.2.7, 5.3.7, 6.0.6
How to fix
Upgrade to a fixed version: Fortinet FortiPortal 5.2.7, 5.3.7, 6.0.6. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2021-36171 or the next vulnerability affects your stack