What’s Vulnerable › Vulnerabilities

CVE-2023-25602

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-02-16 · updated 2026-06-17
• Weakness: CWE-121

Description

A stack-based buffer overflow in Fortinet FortiWeb 6.4 all versions, FortiWeb versions 6.3.17 and earlier, FortiWeb versions 6.2.6 and earlier, FortiWeb versions 6.1.2 and earlier, FortiWeb versions 6.0.7 and earlier, FortiWeb versions 5.9.1 and earlier, FortiWeb 5.8 all versions, FortiWeb 5.7 all versions, FortiWeb 5.6 all versions allows attacker to execute unauthorized code or commands via specially crafted command arguments.

Affected products

• Fortinet FortiWeb: from 5.6.0 before 5.9.2; from 6.0.0 before 6.0.8; from 6.1.0 before 6.1.3; from 6.2.0 before 6.2.7; from 6.3.0 before 6.3.18; from 6.4.0 through 6.4.2 — fixed in 5.9.2, 6.0.8, 6.1.3, 6.2.7, 6.3.18

How to fix

Upgrade to a fixed version: Fortinet FortiWeb 5.9.2, 6.0.8, 6.1.3, 6.2.7. Check the vendor advisory for mitigations.

References

• https://fortiguard.com/psirt/FG-IR-21-234
• https://fortiguard.com/psirt/FG-IR-21-234

Get alerted when CVE-2023-25602 or the next vulnerability affects your stack