What’s Vulnerable › Vulnerabilities

CVE-2023-33305

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-13 · updated 2026-06-17
• Weakness: CWE-835

Description

A loop with unreachable exit condition ('infinite loop') in Fortinet FortiOS version 7.2.0 through 7.2.4, FortiOS version 7.0.0 through 7.0.10, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiProxy version 7.2.0 through 7.2.3, FortiProxy version 7.0.0 through 7.0.9, FortiProxy 2.0 all versions, FortiProxy 1.2 all versions, FortiProxy 1.1 all versions, FortiProxy 1.0 all versions, FortiWeb version 7.2.0 through 7.2.1, FortiWeb version 7.0.0 through 7.0.6, FortiWeb 6.4 all versions, FortiWeb 6.3 all versions allows attacker to perform a denial of service via specially crafted HTTP requests.

Affected products

• Fortinet FortiOS (FortiGate): from 5.0.0 through 5.0.14; from 5.2.0 through 5.2.15; from 5.4.0 through 5.4.13; from 5.6.0 through 5.6.14; from 6.0.0 through 6.0.17; from 6.2.0 through 6.2.15
• Fortinet FortiProxy: from 1.0.0 through 1.0.7; from 1.1.0 through 1.1.6; from 1.2.0 through 1.2.13; from 2.0.0 through 2.0.12; from 7.0.0 through 7.0.9; from 7.2.0 through 7.2.3
• Fortinet FortiWeb: from 6.3.0 through 6.3.23; from 6.4.0 through 6.4.3; from 7.0.0 through 7.0.6; 7.2.0, 7.2.1

References

• https://fortiguard.com/psirt/FG-IR-22-375
• https://fortiguard.com/psirt/FG-IR-22-375

Get alerted when CVE-2023-33305 or the next vulnerability affects your stack