What’s Vulnerable › Vulnerabilities
CVE-2021-26102
- Severity: critical (CVSS 9.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 19.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-12-19 · updated 2026-06-17
- Weakness: CWE-305
Description
A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value.
Affected products
- Fortinet FortiWAN: from 4.4.0 before 4.5.8 — fixed in 4.5.8
How to fix
Upgrade to a fixed version: Fortinet FortiWAN 4.5.8. Check the vendor advisory for mitigations.
References
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