RCE in Fortinet Fortiweb

CVE-2025-27759

An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in Fortinet FortiWeb version 7.6.0 through 7.6.3, 7.4.0 through 7.4.7, 7.2.0 through 7.2.10 and before 7.0.10 allows an authenticated privileged attacker to execute unauthorized code or commands via crafted CLI commands

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (36.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% 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-2025-27759: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-27759?
CVE-2025-27759 is a medium-severity vulnerability in Fortinet Fortiweb, classified under OS Command Injection. CVSS score: 6.7/10. Published 2025-08-12.
How severe is CVE-2025-27759?
Medium severity. CVSS v3 base score is 6.7 out of 10.