CVE-2025-25256 Command injection in FortiSIEM
Unauthenticated attackers can execute arbitrary commands via crafted CLI requests in FortiSIEM, requiring immediate upgrades.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-25256?
CVE-2025-25256 is a critical command injection vulnerability in Fortinet FortiSIEM, published on 12 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-78
Which versions are affected by CVE-2025-25256?
It affects 1 product.
Products include Fortinet Fortisiem.
How do I fix CVE-2025-25256?
No fix has been published for CVE-2025-25256 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-25256 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-25256 exists.
Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.
Other vulnerabilities in Fortinet FortiSIEM
Sources
Also known as GHSA-6gxf-4w6m-j956.