CVE-2022-39044

Admin-authenticated command execution via hidden debug function

Published Dec 7, 2022 · Updated Apr 23, 2025

Hidden functionality in Buffalo network-device firmware allows remote authenticated users to execute arbitrary OS commands over an adjacent network. The affected firmware exposes an undocumented debug function to a logged-in administrator, and that function executes supplied input as OS commands. Administrative credentials and adjacent-network access are required; public advisories do not identify the request path or command-handling code.

CVSS severity6.8
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hidden functionality in Buffalo network-device firmware allows remote authenticated users to execute arbitrary OS commands over an adjacent network. The affected firmware exposes an undocumented debug function to a logged-in administrator, and that function executes supplied input as OS commands. Administrative credentials and adjacent-network access are required; public advisories do not identify the request path or command-handling code.

The record

CVE
CVE-2022-39044
Published
Dec 7, 2022
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-912, T1059
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Dec 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8JPCERT/CCCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.8CISA-ADPCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.8NIST NVDCVSS:3.1/AV:A/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)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-912Hidden Functionality
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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