CVE-2022-33874Network attack vector

Unauthenticated shell command execution via SSH login injection

Published Oct 10, 2022 · Updated Oct 25, 2024

OS command injection in FortiTester allows remote attackers to execute arbitrary shell commands through its SSH login component. The SSH login component passes attacker-controlled special elements to the underlying shell without neutralizing them. No authentication or user interaction is required, and successful exploitation grants command execution in the appliance shell.

CVSS severity9.8
Critical
EPSS probability2.98%
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 FortiTester allows remote attackers to execute arbitrary shell commands through its SSH login component. The SSH login component passes attacker-controlled special elements to the underlying shell without neutralizing them. No authentication or user interaction is required, and successful exploitation grants command execution in the appliance shell.

The record

CVE
CVE-2022-33874
Published
Oct 10, 2022
Updated
Oct 25, 2024
Vendor
Fortinet
Product
FortiTester
Classifications
CWE-78, T1059, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 10, 2022CVE publishedPublication date reported by the CVE source.
  2. Oct 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=FortiTester 2.3.0 through 3.9.1, 4.0.0 through 4.2.0, 7.0.0 through 7.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fortinet · FortiTesterversion=FortiTester 2.3.0 through 3.9.1, 4.0.0 through 4.2.0, 7.0.0 through 7.1.0

Published CVSS scores

9.8Fortinet, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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)
Vectornetwork
Privilegesunauthenticated
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
T1190Exploit Public-Facing Application

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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