# CVE-2025-25256

## Summary

- **CVE ID:** CVE-2025-25256
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C)
- **CWE:** CWE-78
- **Published:** Aug 12, 2025
- **Last Modified:** Aug 18, 2026

## Description

An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in Fortinet FortiSIEM version 7.3.0 through 7.3.1, 7.2.0 through 7.2.5, 7.1.0 through 7.1.7, 7.0.0 through 7.0.3 and before 6.7.9 allows an unauthenticated attacker to execute unauthorized code or commands via crafted CLI requests.

## Affected Products

- Fortinet — FortiSIEM (7.3.0)
- Fortinet — FortiSIEM (7.2.0)
- Fortinet — FortiSIEM (7.1.0)
- Fortinet — FortiSIEM (7.0.0)
- Fortinet — FortiSIEM (6.7.0)
- Fortinet — FortiSIEM (6.6.0)
- Fortinet — FortiSIEM (6.5.0)
- Fortinet — FortiSIEM (6.4.0)
- Fortinet — FortiSIEM (6.3.0)
- Fortinet — FortiSIEM (6.2.0)
- Fortinet — FortiSIEM (6.1.0)
- Fortinet — FortiSIEM (5.4.0)
- Fortinet — FortiSIEM (5.3.0)
- Fortinet — FortiSIEM (5.2.5)
- Fortinet — FortiSIEM (5.2.1)
- Fortinet — FortiSIEM (5.1.0)
- Fortinet — FortiSIEM (5.0.0)
- Fortinet — FortiSIEM (4.10.0)
- Fortinet — FortiSIEM (4.9.0)
- Fortinet — FortiSIEM (4.7.2)

## References

- [CNA](https://fortiguard.fortinet.com/psirt/FG-IR-25-152)
- [CISA-ADP](https://github.com/watchtowrlabs/watchTowr-vs-FortiSIEM-CVE-2025-25256)
- [CISA-ADP](https://labs.watchtowr.com/should-security-solutions-be-secure-maybe-were-all-wrong-fortinet-fortisiem-pre-auth-command-injection-cve-2025-25256/)
- [CVE](https://www.theregister.com/2025/08/13/fortinet_discloses_critical_bug/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 60.34%
- **EPSS Percentile:** 99.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._