Read the docs
TI-2025-18918 Aliases CVE-2025-25256GHSA-6gxf-4w6m-j956

OS command injection in Fortinet FortiSIEM

Priority CRITICAL 85CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] vulnerability in Fortinet FortiSIEM 7.3.0 through 7.3.1, FortiSIEM 7.2.0 through 7.2.5, FortiSIEM 7.1.0 through 7.1.7, FortiSIEM 7.0.0 through 7.0.3, FortiSIEM 6.7.0 through 6.7.9, FortiSIEM 6.6 all versions, FortiSIEM 6.5 all versions, FortiSIEM 6.4 all versions, FortiSIEM 6.3 all versions, FortiSIEM 6.2 all versions, FortiSIEM 6.1 all versions, FortiSIEM 5.4 all versions, FortiSIEM 5.3 all versions, FortiSIEM 5.2 all versions, FortiSIEM 5.1 all versions, FortiSIEM 5.0 all versions, FortiSIEM 4.10 all versions, FortiSIEM 4.9 all versions, FortiSIEM 4.7 all versions allows an unauthenticated attacker to execute unauthorized code or commands via crafted CLI requests.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.64959 99th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FortinetFortiSIEM7.3.0 – 7.3.1; 7.2.0 – 7.2.5; 7.1.0 – 7.1.7; 7.0.0 – 7.0.3; 6.7.0 – 6.7.9; 6.6.0 – 6.6.5; 6.5.0 – 6.5.3; 6.4.0 – 6.4.4; 6.3.0 – 6.3.3; 6.2.0 – 6.2.1; 6.1.0 – 6.1.2; 5.4.0; 5.3.0 – 5.3.3; 5.2.5 – 5.2.8; 5.2.1 – 5.2.2; 5.1.0 – 5.1.3; 5.0.0 – 5.0.1; 4.10.0; 4.9.0; 4.7.2—No fix listedCNA
  • FortiSIEM VendorFortinet Affected 7.3.0 – 7.3.1; 7.2.0 – 7.2.5; 7.1.0 – 7.1.7; 7.0.0 – 7.0.3; 6.7.0 – 6.7.9; 6.6.0 – 6.6.5; 6.5.0 – 6.5.3; 6.4.0 – 6.4.4; 6.3.0 – 6.3.3; 6.2.0 – 6.2.1; 6.1.0 – 6.1.2; 5.4.0; 5.3.0 – 5.3.3; 5.2.5 – 5.2.8; 5.2.1 – 5.2.2; 5.1.0 – 5.1.3; 5.0.0 – 5.0.1; 4.10.0; 4.9.0; 4.7.2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:*5.4.0 to before 6.7.10; 7.0.0 to before 7.0.4; 7.1.0 to before 7.1.8; 7.2.0 to before 7.2.6; 7.3.0 to before 7.3.2VulnerableFortinet
  • cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:* Versions 5.4.0 to before 6.7.10; 7.0.0 to before 7.0.4; 7.1.0 to before 7.1.8; 7.2.0 to before 7.2.6; 7.3.0 to before 7.3.2 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-25256
  2. 2026-10-03 Alias added: GHSA-6gxf-4w6m-j956

References

Advisory 2

  • TI-2024-15229 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
  • TI-2023-17481 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
  • TI-2025-39605 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.4
  • TI-2024-15230 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
  • TI-2023-18387 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
  • TI-2019-12140 Hard-coded credentials in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences