RCE in Fortinet Fortisandbox Cloud

CVE-2026-25836

An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox Cloud 5.0.4, FortiSandbox PaaS 5.0.4 may allow a privileged attacker with super-admin profile and CLI access to execute unauthorized code or commands via crafted HTTP requests.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (75.7th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-25836: held from 0.018 to 0.016.

EPSS over last 30 days · oldest: 0.018 · newest: 0.016 · change: -0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-25836?
CVE-2026-25836 is a high-severity vulnerability in Fortinet Fortisandbox Cloud, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-03-10.
How severe is CVE-2026-25836?
High severity. CVSS v3 base score is 7.2 out of 10.