What is the CVSS score of CVE-2024-21773?

CVE-2024-21773 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of Archer Ax3000 Firmware are affected by CVE-2024-21773?

CVE-2024-21773 presents significant security risk, a OS command injection vulnerability rated CVSS 8.8.

How to fix or mitigate CVE-2024-21773?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. Validate that input sanitization is in place for all user-controlled parameters.

Archer Ax3000 Firmware CVE-2024-21773

HIGH

OS Command Injection (CWE-78)

2024-01-11 vultures@jpcert.or.jp

TP-Link Command Injection Archer Ax3000 Firmware Archer Ax5400 Firmware Deco X50 Firmware Deco Xe200 Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:34 vuln.today

CVE Published

Jan 11, 2024 - 00:15 nvd

HIGH 8.8

DescriptionCVE.org

Multiple TP-LINK products allow a network-adjacent unauthenticated attacker with access to the product from the LAN port or Wi-Fi to execute arbitrary OS commands on the product that has pre-specified target devices and blocked URLs in parental control settings.

AnalysisAI

Multiple TP-LINK products allow a network-adjacent unauthenticated attacker with access to the product from the LAN port or Wi-Fi to execute arbitrary OS commands on the product that has. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. Multiple TP-LINK products allow a network-adjacent unauthenticated attacker with access to the product from the LAN port or Wi-Fi to execute arbitrary OS commands on the product that has pre-specified target devices and blocked URLs in parental control settings. Affected products include: Tp-Link Archer Ax3000 Firmware, Tp-Link Archer Ax5400 Firmware, Tp-Link Deco X50 Firmware, Tp-Link Deco Xe200 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.