CVE-2025-25256

criticalpriority · track · 33EPSS 0.653 · 99 %ileexploit · PoCDEEUNLRUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

65.3% (99th) EPSS

CVSS 9.8 · critical

Is it mine?

58 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:X/RC:Csecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@fortinet.comexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USCWE-78USCWE-78US

exploits (1)

Public proof-of-concept and weaponised exploit code.

watchtowrlabs/watchTowr-vs-FortiSIEM-CVE-2025-25256watchtowrlabs/watchTowr-vs-FortiSIEM-CVE-2025-25256PoC · poc_in_github

affected products (58)

Products and version ranges known to be affected.

Fortinet FortiSIEM <6.7.10all versionscert_bundDE
Fortinet FortiSIEM <7.0.4all versionscert_bundDE
Fortinet FortiSIEM <7.1.8all versionscert_bundDE
Fortinet FortiSIEM <7.2.6all versionscert_bundDE
Fortinet FortiSIEM <7.3.2all versionscert_bundDE
Fortinet FortiSIEM< 6.7.10cert_bundDE
Fortinet FortiSIEM< 7.0.4cert_bundDE
Fortinet FortiSIEM< 7.1.8cert_bundDE
Fortinet FortiSIEM< 7.2.6cert_bundDE
Fortinet FortiSIEM< 7.3.2cert_bundDE
Fortinet FortiSIEM≤ 6.1.0 ≤6.1.2enisa_euvdEU
Fortinet FortiSIEM≤ 6.7.0 ≤6.7.9enisa_euvdEU
Fortinet FortiSIEM≤ 7.3.0 ≤7.3.1enisa_euvdEU
Fortinet FortiSIEM≤ 6.4.0 ≤6.4.4enisa_euvdEU
Fortinet FortiSIEM≤ 6.2.0 ≤6.2.1enisa_euvdEU
Fortinet FortiSIEM≤ 6.3.0 ≤6.3.3enisa_euvdEU
Fortinet FortiSIEM≤ 7.1.0 ≤7.1.7enisa_euvdEU
Fortinet FortiSIEM≤ 6.6.0 ≤6.6.5enisa_euvdEU
Fortinet FortiSIEM≤ 6.5.0 ≤6.5.3enisa_euvdEU
Fortinet FortiSIEM≤ 5.4.0enisa_euvdEU

showing 20 of 58

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2025-0255Kwetsbaarheden verholpen in Fortinet productenNL2025-08-13csaf · ncsc_nlNL
Fortinet heeft kwetsbaarheden verholpen in FortiOS, FortiProxy, FortiPAM, FortiSIEM, FortiWeb en FortiADC.
WID-SEC-W-2025-1808Fortinet FortiSIEM: Schwachstelle ermöglicht CodeausführungDeutsch2025-08-12csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Fortinet FortiSIEM ausnutzen, um beliebigen Programmcode auszuführen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl NVD CVE.org MITRE

published 2025-08-12modified 2026-08-18

references (8)

External citations — patches, advisories, analysis.

scry

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