CVE-2022-42433

Root code execution via unvalidated system call

Published Mar 29, 2023 · Updated Feb 14, 2025

Command injection in TP-Link TL-WR841N firmware 220121 allows network-adjacent attackers to execute arbitrary code as root. The ated_tp service passes a user-supplied string to a system call without adequate validation, enabling command execution. Authentication is nominally required, but the existing authentication mechanism can be bypassed from the adjacent network.

CVSS severity8.0
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in TP-Link TL-WR841N firmware 220121 allows network-adjacent attackers to execute arbitrary code as root. The ated_tp service passes a user-supplied string to a system call without adequate validation, enabling command execution. Authentication is nominally required, but the existing authentication mechanism can be bypassed from the adjacent network.

The record

CVE
CVE-2022-42433
Published
Mar 29, 2023
Updated
Feb 14, 2025
Vendor
TP-Link
Product
TL-WR841N
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 14, 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?

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

  1. Affected versionversion=TL-WR841N(US)_V14_220121

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

TP-Link · TL-WR841Nversion=TL-WR841N(US)_V14_220121

Published CVSS scores

8.0NIST National Vulnerability DatabaseCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.4Zero Day InitiativeCVSS:3.1/AV:A/AC:H/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
Privilegesauthenticated
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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