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CVE-2025-64155

critical

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.

From the Tenable Blog

CVE-2025-64155 PoC released Command Injection Vulnerability
CVE-2025-64155 PoC released Command Injection Vulnerability

Published: 2026-01-14

CVE-2025-64155 PoC released Command Injection Vulnerability

References

https://www.securityweek.com/fortinet-patches-critical-vulnerabilities-in-fortifone-fortisiem/

https://thehackernews.com/2026/01/fortinet-fixes-critical-fortisiem-flaw.html

https://securityaffairs.com/186902/uncategorized/fortinet-fixed-two-critical-flaws-in-fortifone-and-fortisiem.html

https://fortiguard.fortinet.com/psirt/FG-IR-25-772

Details

Source: Mitre, NVD

Published: 2026-01-13

Updated: 2026-01-14

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00067

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability of Interest