CVE-2025-64157
Medium
Description
A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0 all versions allows an authenticated admin to execute unauthorized code or commands via specifically crafted configuration.
SeverityMedium
CVSS6.7
Exploit probability—
Product
Fortinet Fortios
PublishedFeb 10, 2026
First seenFeb 10, 2026
Weakness typeCWE-134CWE-134
How to fix
Update
- fortinet fortios7.4.10, 7.6.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fortinet fortios | 7.0.0 ≤ v < 7.4.10, 7.6.0 ≤ v < 7.6.5 | 7.4.10, 7.6.5 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.