CVE-2022-43109Public exploitNetwork attack vector

Unauthenticated command execution via unsanitized Address parameter

Published Nov 3, 2022 · Updated May 5, 2025

Command injection in D-Link DIR-823G 1.0.2 allows remote attackers to execute arbitrary OS commands through a crafted HNAP1 request. The SetNetworkTomographySettings handler stores the unvalidated Address value, and GetNetworkTomographyResult interpolates it into a ping command passed to system(). Network access to the unauthenticated HNAP1 endpoint is sufficient, granting command execution with the router service's privileges.

CVSS severity9.8
Critical
EPSS probability3.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in D-Link DIR-823G 1.0.2 allows remote attackers to execute arbitrary OS commands through a crafted HNAP1 request. The SetNetworkTomographySettings handler stores the unvalidated Address value, and GetNetworkTomographyResult interpolates it into a ping command passed to system(). Network access to the unauthenticated HNAP1 endpoint is sufficient, granting command execution with the router service's privileges.

The record

CVE
CVE-2022-43109
Published
Nov 3, 2022
Updated
May 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 3, 2022CVE publishedPublication date reported by the CVE source.
  2. May 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Unix Shell

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo