CVE-2025-66178Network attack vector

Authenticated command execution via crafted HTTP requests

Published Mar 10, 2026 · Updated Mar 10, 2026

OS command injection in Fortinet FortiWeb 7.0, 7.2, 7.4, 7.6, and 8.0 allows remote authenticated users to execute commands via HTTP requests. A crafted request reaches an undisclosed code locus that fails to neutralize shell metacharacters before invoking an operating-system command. The gate is a high-privilege administrative account; affected versions are 7.0.0 through 7.0.12, 7.2.0 through 7.2.12, 7.4.0 through 7.4.11, 7.6.0 through 7.6.5, and 8.0.0 through 8.0.1.

CVSS severity7.2
High
EPSS probability1.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Fortinet FortiWeb 7.0, 7.2, 7.4, 7.6, and 8.0 allows remote authenticated users to execute commands via HTTP requests. A crafted request reaches an undisclosed code locus that fails to neutralize shell metacharacters before invoking an operating-system command. The gate is a high-privilege administrative account; affected versions are 7.0.0 through 7.0.12, 7.2.0 through 7.2.12, 7.4.0 through 7.4.11, 7.6.0 through 7.6.5, and 8.0.0 through 8.0.1.

The record

CVE
CVE-2025-66178
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
Fortinet
Product
FortiWeb
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.0.0 <=7.0.12
  2. Affected versionversion=7.2.0 <=7.2.12
  3. Affected versionversion=7.4.0 <=7.4.11
  4. Affected versionversion=7.6.0 <=7.6.5
  5. Affected versionversion=8.0.0 <=8.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Fortinet · FortiWebversion=7.0.0 <=7.0.12; version=7.2.0 <=7.2.12; version=7.4.0 <=7.4.11; version=7.6.0 <=7.6.5; version=8.0.0 <=8.0.1

Published CVSS scores

7.2Fortinet, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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