CVE-2023-36642

Authenticated command execution via crafted command arguments

Published Sep 13, 2023 · Updated Sep 25, 2024

OS command injection in Fortinet FortiTester 3.0.0 through 7.2.3 allows local users to execute unauthorized operating-system commands. The management interface passes specially crafted arguments to existing commands without neutralizing command-control characters. Exploitation requires a high-privilege authenticated management session, after which injected commands execute on the appliance.

CVSS severity6.7
Medium
EPSS probability0.21%
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 FortiTester 3.0.0 through 7.2.3 allows local users to execute unauthorized operating-system commands. The management interface passes specially crafted arguments to existing commands without neutralizing command-control characters. Exploitation requires a high-privilege authenticated management session, after which injected commands execute on the appliance.

The record

CVE
CVE-2023-36642
Published
Sep 13, 2023
Updated
Sep 25, 2024
Vendor
Fortinet
Product
FortiTester
Classifications
CWE-78, CWE-77, T1059.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2024Record 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=3.0.0
  2. Affected versionversion=3.0.0 <=7.2.3
  3. Affected versionversion=3.1.0
  4. Affected versionversion=3.2.0
  5. Affected versionversion=3.3.0 <=3.3.1
  6. Affected versionversion=3.4.0
  7. Affected versionversion=3.5.0 <=3.5.1
  8. Affected versionversion=3.6.0
  9. Affected versionversion=3.7.0 <=3.7.1
  10. Affected versionversion=3.8.0
  11. Affected versionversion=3.9.0 <=3.9.2
  12. Affected versionversion=4.0.0
  13. Affected versionversion=4.1.0 <=4.1.1
  14. Affected versionversion=4.2.0 <=4.2.1
  15. Affected versionversion=7.0.0
  16. Affected versionversion=7.1.0 <=7.1.1
  17. Affected versionversion=7.2.0 <=7.2.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Fortinet · FortiTesterversion=3.0.0; version=3.0.0 <=7.2.3; version=3.1.0; version=3.2.0; version=3.3.0 <=3.3.1; version=3.4.0; version=3.5.0 <=3.5.1; version=3.6.0; version=3.7.0 <=3.7.1; version=3.8.0; version=3.9.0 <=3.9.2; version=4.0.0; version=4.1.0 <=4.1.1; version=4.2.0 <=4.2.1; version=7.0.0; version=7.1.0 <=7.1.1; version=7.2.0 <=7.2.3

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.7Fortinet, Inc.CVSS:3.1/AV:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

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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