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CVE-2025-58034: Fortinet FortiWeb OS Command Injection Vulnerability

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2025-11-18
• EPSS: 54.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-18 · updated 2026-10-18
• Weakness: CWE-78

Description

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow an authenticated attacker to execute unauthorized code on the underlying system via crafted HTTP requests or CLI commands.

Affected products

• Fortinet FortiWeb: from 7.0.0 before 7.0.12; from 7.2.0 before 7.2.12; from 7.4.0 before 7.4.11; from 7.6.0 before 7.6.6; from 8.0.0 before 8.0.2 — fixed in 7.0.12, 7.2.12, 7.4.11, 7.6.6, 8.0.2

How to fix

Upgrade to a fixed version: Fortinet FortiWeb 7.0.12, 7.2.12, 7.4.11, 7.6.6. Check the vendor advisory for mitigations.

References

• https://fortiguard.fortinet.com/psirt/FG-IR-25-513
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-58034

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