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Public proof of conceptFix available

CVE-2025-64155

A public proof of concept exists; no exploitation attested.

  • Published2026-01-13
  • Fixed in7.3.5 · 7.2.7 · 7.1.9
  • WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSIEM 7.4.0, FortiSIEM 7.3.0 through 7.3.4, FortiSIEM 7.1.0 through 7.1.8, FortiSIEM 7.0.0 through 7.0.4, FortiSIEM 6.7.0 through 6.7.10 may allow an attacker to execute unauthorized code or commands via crafted TCP requests.

Timeline

dates in UTC
  1. 2026-01-1317:15CVE publishedNVD

Versions per branch

NVD
Fortinet fortisiem
BranchAffectedFixed in
7.3≥ 7.3.0, < 7.3.57.3.5
7.2≥ 7.2.0, < 7.2.77.2.7
7.1≥ 6.7.0, < 7.1.97.1.9
7.4= 7.4.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As fortinet, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Fortinet FortiSIEMother versions: not affected
    Affected
    • = 7.4.0no fix stated
    • ≥ 7.3.0, ≤ 7.3.4no fix statedsemver
    • = 7.2.6no fix stated
    • = 7.1.8no fix stated
    • = 7.0.4no fix stated
    • = 6.7.10no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-01-14

Fix

  1. Update Fortinet fortisiem to 7.3.5 · 7.2.7 · 7.1.9

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-01-13
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-gvhh-fvm4-vqqj

Frequently asked questions

What is CVE-2025-64155?

An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSIEM 7.4.0, FortiSIEM 7.3.0 through 7.3.4, FortiSIEM 7.1.0 through 7.1.8, FortiSIEM 7.0.0 through 7.0.4, FortiSIEM 6.7.0 through 6.7.10 may allow an attacker to execute unauthorized code or commands via crafted TCP requests.

Is CVE-2025-64155 actively exploited?

A proof-of-concept exploit exists for CVE-2025-64155, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-64155?

CVE-2025-64155 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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