Critical [CVE-2025-25256] 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
This critical-severity Fortinet advisory covers CVE-2025-25256 affecting FortiSIEM.
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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.
- FortiSIEM 7.3: 7.3.0 through 7.3.1
- FortiSIEM 7.2: 7.2.0 through 7.2.5
- FortiSIEM 7.1: 7.1.0 through 7.1.7
- FortiSIEM 7.0: 7.0.0 through 7.0.3
- FortiSIEM 6.7: 6.7.0 through 6.7.9
- FortiSIEM 6.6: 6.6 all versions
- FortiSIEM 6.5: 6.5 all versions
- FortiSIEM 6.4: 6.4 all versions
- FortiSIEM 6.3: 6.3 all versions
- FortiSIEM 6.2: 6.2 all versions
- FortiSIEM 6.1: 6.1 all versions
- FortiSIEM 5.4: 5.4 all versions
- FortiSIEM 5.3: 5.3 all versions
- FortiSIEM 5.2: 5.2 all versions
- FortiSIEM 5.1: 5.1 all versions
- FortiSIEM 5.0: 5.0 all versions
- FortiSIEM 4.10: 4.10 all versions
- FortiSIEM 4.9: 4.9 all versions
- FortiSIEM 4.7: 4.7 all versions
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
- FortiSIEM 7.3: 7.3.2
- FortiSIEM 7.2: 7.2.6
- FortiSIEM 7.1: 7.1.8
- FortiSIEM 7.0: 7.0.4
- FortiSIEM 6.7: 6.7.10
- FortiSIEM 6.6: migrate to a fixed release
- FortiSIEM 6.5: migrate to a fixed release
- FortiSIEM 6.4: migrate to a fixed release
- FortiSIEM 6.3: migrate to a fixed release
- FortiSIEM 6.2: migrate to a fixed release
- FortiSIEM 6.1: migrate to a fixed release
- FortiSIEM 5.4: migrate to a fixed release
- FortiSIEM 5.3: migrate to a fixed release
- FortiSIEM 5.2: migrate to a fixed release
- FortiSIEM 5.1: migrate to a fixed release
- FortiSIEM 5.0: migrate to a fixed release
- FortiSIEM 4.10: migrate to a fixed release
- FortiSIEM 4.9: migrate to a fixed release
- FortiSIEM 4.7: migrate to a fixed release
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Upgrade per the Affected/Solution table: FortiSIEM 7.3: 7.3.2; FortiSIEM 7.2: 7.2.6; FortiSIEM 7.1: 7.1.8; FortiSIEM 7.0: 7.0.4; FortiSIEM 6.7: 6.7.10; ….
- Limit access to the phMonitor port (7900)
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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