7.2

CVE-2025-66178: fortinet fortiweb OS Command Injection

CVSS: 7.2v3.1HighModified
Published 10-03-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2025-66178 is a high (CVSS 7.2) OS Command Injection vulnerability in fortinet fortiweb. EPSS estimates a 1.70% chance of exploitation in the next 30 days, higher than 76.9% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v3.1 (NVD)
EPSS score
1.70%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 10-03-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11, FortiWeb 7.2.0 through 7.2.12, FortiWeb 7.0.0 through 7.0.12 may allow an authenticated attacked to execute arbitrary commands via a specialy crafted HTTP request.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.70%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

+0.03 pp

From 1.67% on 22-09-2026

22-09-202622-10-2026
EPSS score
1.70%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fortinet1 product
  • fortiweb≥ 8.0.0, ≤ 8.0.2 | ≥ 7.6.0, ≤ 7.6.6 | ≥ 7.4.0, ≤ 7.4.11 | ≥ 7.2.0, ≤ 7.2.12 | ≥ 7.0.0, ≤ 7.0.12 | ≥ 7.0.0, < 7.0.13 | ≥ 7.2.0, < 7.2.13 | ≥ 7.4.0, < 7.4.12 | ≥ 7.6.0, < 7.6.7 | ≥ 8.0.0, < 8.0.3

1 vendor · 1 product

References

1 links