CVE-2024-21773

Adjacent unauthenticated command execution through parental controls

Published Jan 10, 2024 · Updated Jun 3, 2025

OS command injection in affected TP-Link router firmware allows remote attackers on the LAN or Wi-Fi network to execute arbitrary commands. Public records identify the trigger as predefined target devices and blocked URLs in parental controls, but do not disclose the parameter or command-building code that mishandles input. No authentication is required, but LAN-port or Wi-Fi access and the configured parental-control state are required.

CVSS severity7.5
High
EPSS probability0.53%
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 affected TP-Link router firmware allows remote attackers on the LAN or Wi-Fi network to execute arbitrary commands. Public records identify the trigger as predefined target devices and blocked URLs in parental controls, but do not disclose the parameter or command-building code that mishandles input. No authentication is required, but LAN-port or Wi-Fi access and the configured parental-control state are required.

The record

CVE
CVE-2024-21773
Published
Jan 10, 2024
Updated
Jun 3, 2025
Vendor
TP-Link
Product
Archer Air R5
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 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?

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

  1. Affected versionversion=firmware versions prior to "Archer Air R5(JP)_V1_1.1.6 Build 20240508"

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

TP-Link · Archer Air R5version=firmware versions prior to "Archer Air R5(JP)_V1_1.1.6 Build 20240508"
TP-Link · Deco X50version=firmware versions prior to "Deco X50(JP)_V1_1.4.1 Build 20231122"
TP-Link · Archer AX3000version=firmware versions prior to "Archer AX3000(JP)_V1_1.1.2 Build 20231115"
TP-Link · Archer AX5400version=firmware versions prior to "Archer AX5400(JP)_V1_1.1.2 Build 20231115"
TP-Link · Deco XE200version=firmware versions prior to "Deco XE200(JP)_V1_1.2.5 Build 20231120"

Published CVSS scores

7.5JPCERT/CCCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8NVDCVSS:3.1/AV:A/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)
Vectoradjacent
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

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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