CVE-2025-25256

Published Aug 12, 2025 CVSS 3.1 · 9.8 Critical EPSS 67.3% KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Fortinet

FortiSIEM

unaffected

Version	Status	Constraints
`7.3.0`	affected	≤ 7.3.1
`7.2.0`	affected	≤ 7.2.5
`7.1.0`	affected	≤ 7.1.7
`7.0.0`	affected	≤ 7.0.3
`6.7.0`	affected	≤ 6.7.9
`6.6.0`	affected	≤ 6.6.5
`6.5.0`	affected	≤ 6.5.3
`6.4.0`	affected	≤ 6.4.4
`6.3.0`	affected	≤ 6.3.3
`6.2.0`	affected	≤ 6.2.1
`6.1.0`	affected	≤ 6.1.2
`5.4.0`	affected	—
`5.3.0`	affected	≤ 5.3.3
`5.2.5`	affected	≤ 5.2.8
`5.2.1`	affected	≤ 5.2.2
`5.1.0`	affected	≤ 5.1.3
`5.0.0`	affected	≤ 5.0.1
`4.10.0`	affected	—
`4.9.0`	affected	—
`4.7.2`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:fortinet:fortisiem::::::::
	cpe:2.3:a:fortinet:fortisiem::::::::
	cpe:2.3:a:fortinet:fortisiem::::::::
	cpe:2.3:a:fortinet:fortisiem::::::::
	cpe:2.3:a:fortinet:fortisiem::::::::

No data.

Vendor	Product	Versions
Fortinet	Fortisiem	—

Remediation

Vendor Solution

Upgrade to FortiSIEM version 7.4.0 or above Upgrade to FortiSIEM version 7.3.2 or above Upgrade to FortiSIEM version 7.2.6 or above Upgrade to FortiSIEM version 7.1.8 or above Upgrade to FortiSIEM version 7.0.4 or above Upgrade to FortiSIEM version 6.7.10 or above

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 67.3% (67.348% probability within 30 days)

Exploitation poc

Automatable yes

Technical Impact total

References

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

History

Aug 18, 2026 9:15 PM Description updated. Affected versions updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.	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.
CPEs		cpe:2.3:a:fortinet:fortisiem:4.10.0:::::::* cpe:2.3:a:fortinet:fortisiem:4.7.2:::::::* cpe:2.3:a:fortinet:fortisiem:4.9.0:::::::* cpe:2.3:a:fortinet:fortisiem:5.0.0:::::::* cpe:2.3:a:fortinet:fortisiem:5.0.1:::::::* cpe:2.3:a:fortinet:fortisiem:5.1.0:::::::* cpe:2.3:a:fortinet:fortisiem:5.1.1:::::::* cpe:2.3:a:fortinet:fortisiem:5.1.2:::::::* cpe:2.3:a:fortinet:fortisiem:5.1.3:::::::* cpe:2.3:a:fortinet:fortisiem:5.2.1:::::::* cpe:2.3:a:fortinet:fortisiem:5.2.2:::::::* cpe:2.3:a:fortinet:fortisiem:5.2.5:::::::* cpe:2.3:a:fortinet:fortisiem:5.2.6:::::::* cpe:2.3:a:fortinet:fortisiem:5.2.7:::::::* cpe:2.3:a:fortinet:fortisiem:5.2.8:::::::* cpe:2.3:a:fortinet:fortisiem:5.3.0:::::::* cpe:2.3:a:fortinet:fortisiem:5.3.1:::::::* cpe:2.3:a:fortinet:fortisiem:5.3.2:::::::* cpe:2.3:a:fortinet:fortisiem:5.3.3:::::::* cpe:2.3:a:fortinet:fortisiem:5.4.0:::::::* cpe:2.3:a:fortinet:fortisiem:6.1.0:::::::* cpe:2.3:a:fortinet:fortisiem:6.1.1:::::::* cpe:2.3:a:fortinet:fortisiem:6.1.2:::::::* cpe:2.3:a:fortinet:fortisiem:6.2.0:::::::* cpe:2.3:a:fortinet:fortisiem:6.2.1:::::::* cpe:2.3:a:fortinet:fortisiem:6.3.0:::::::* cpe:2.3:a:fortinet:fortisiem:6.3.1:::::::* cpe:2.3:a:fortinet:fortisiem:6.3.2:::::::* cpe:2.3:a:fortinet:fortisiem:6.3.3:::::::* cpe:2.3:a:fortinet:fortisiem:6.4.0:::::::* cpe:2.3:a:fortinet:fortisiem:6.4.1:::::::* cpe:2.3:a:fortinet:fortisiem:6.4.2:::::::* cpe:2.3:a:fortinet:fortisiem:6.4.3:::::::* cpe:2.3:a:fortinet:fortisiem:6.4.4:::::::* cpe:2.3:a:fortinet:fortisiem:6.5.0:::::::* cpe:2.3:a:fortinet:fortisiem:6.5.1:::::::* cpe:2.3:a:fortinet:fortisiem:6.5.2:::::::* cpe:2.3:a:fortinet:fortisiem:6.5.3:::::::* cpe:2.3:a:fortinet:fortisiem:6.6.0:::::::* cpe:2.3:a:fortinet:fortisiem:6.6.1:::::::* cpe:2.3:a:fortinet:fortisiem:6.6.2:::::::* cpe:2.3:a:fortinet:fortisiem:6.6.3:::::::* cpe:2.3:a:fortinet:fortisiem:6.6.4:::::::* cpe:2.3:a:fortinet:fortisiem:6.6.5:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.0:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.1:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.2:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.3:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.4:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.5:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.6:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.7:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.8:::::::* cpe:2.3:a:fortinet:fortisiem:6.7.9:::::::* cpe:2.3:a:fortinet:fortisiem:7.0.0:::::::* cpe:2.3:a:fortinet:fortisiem:7.0.1:::::::* cpe:2.3:a:fortinet:fortisiem:7.0.2:::::::* cpe:2.3:a:fortinet:fortisiem:7.0.3:::::::* cpe:2.3:a:fortinet:fortisiem:7.1.0:::::::* cpe:2.3:a:fortinet:fortisiem:7.1.1:::::::* cpe:2.3:a:fortinet:fortisiem:7.1.2:::::::* cpe:2.3:a:fortinet:fortisiem:7.1.3:::::::* cpe:2.3:a:fortinet:fortisiem:7.1.4:::::::* cpe:2.3:a:fortinet:fortisiem:7.1.5:::::::* cpe:2.3:a:fortinet:fortisiem:7.1.6:::::::* cpe:2.3:a:fortinet:fortisiem:7.1.7:::::::* cpe:2.3:a:fortinet:fortisiem:7.2.0:::::::* cpe:2.3:a:fortinet:fortisiem:7.2.1:::::::* cpe:2.3:a:fortinet:fortisiem:7.2.2:::::::* cpe:2.3:a:fortinet:fortisiem:7.2.3:::::::* cpe:2.3:a:fortinet:fortisiem:7.2.4:::::::* cpe:2.3:a:fortinet:fortisiem:7.2.5:::::::* cpe:2.3:a:fortinet:fortisiem:7.3.0:::::::* cpe:2.3:a:fortinet:fortisiem:7.3.1:::::::*
Metrics	cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:X/RC:C'}`	cvssV3_1 `{'score': 9.8, 'vector': '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'}`

Aug 15, 2025 6:15 PM Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
References		https://github.com/watchtowrlabs/watchTowr-vs-FortiSIEM-CVE-2025-25256 https://labs.watchtowr.com/should-security-solutions-be-secure-maybe-were-all-wrong-fortinet-fortisiem-pre-auth-command-injection-cve-2025-25256/
Metrics	ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`	ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Aug 13, 2025 8:30 PM First appearance in the feed. Affected versions updated. Affected vendors updated. Added references View changes

Type	Values Removed	Values Added
First Time appeared		Fortinet Fortinet fortisiem
CPEs		cpe:2.3:a:fortinet:fortisiem::::::::
Vendors & Products		Fortinet Fortinet fortisiem
References		https://www.theregister.com/2025/08/13/fortinet_discloses_critical_bug/

Aug 13, 2025 3:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Aug 12, 2025 7:15 PM Description updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.
Weaknesses		CWE-78
References		https://fortiguard.fortinet.com/psirt/FG-IR-25-152
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:X/RC:C'}`