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CVE-2024-21773

HIGH
8.8
CVSS Score
Published: January 10, 2024 at 11:24 PM UTC
Updated: June 17, 2026 at 07:10 AM UTC
9 products affected across 1 vendorArcher AX3000 FirmwareArcher AX5400 FirmwareDeco X50 Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Archer AX3000 Firmware· TP-Link
95%
v < 1.1.2
Affected range stops below 1.1.2, so it looks safe — our inference, not a vendor statement
Archer AX5400 Firmware· TP-Link
95%
v < 1.1.2
Affected range stops below 1.1.2, so it looks safe — our inference, not a vendor statement
Deco X50 Firmware· TP-Link
95%
v < 1.4.1
Affected range stops below 1.4.1, so it looks safe — our inference, not a vendor statement
tp-link-deco-x50 (same device)
Deco XE200 Firmware· TP-Link
95%
v < 1.2.5
Affected range stops below 1.2.5, so it looks safe — our inference, not a vendor statement
tp-link-deco-xe200 (same device)
Archer AX3000· TP-Link
90%
v < 1.1.2firmware versions prior to "Archer AX3000(JP)_V1_1.1.2 Build 20231115"
Affected range stops below 1.1.2, so it looks safe — our inference, not a vendor statement
Archer AX5400· TP-Link
90%
v < 1.1.2firmware versions prior to "Archer AX5400(JP)_V1_1.1.2 Build 20231115"
Affected range stops below 1.1.2, so it looks safe — our inference, not a vendor statement
Archer Air R5· TP-Link
60%
firmware versions prior to "Archer Air R5(JP)_V1_1.1.6 Build 20240508"
Deco X50· TP-Link
60%
firmware versions prior to "Deco X50(JP)_V1_1.4.1 Build 20231122"
Deco XE200· TP-Link
60%
firmware versions prior to "Deco XE200(JP)_V1_1.2.5 Build 20231120"

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

Third Party Advisory
Source: [email protected]
https://jvn.jp/en/vu/JVNVU91401812/
Source: [email protected]
https://www.tp-link.com/jp/support/download/archer-air-r5/v1/#Firmware
Product
Source: [email protected]
https://www.tp-link.com/jp/support/download/archer-ax3000/#Firmware
Product
Source: [email protected]
https://www.tp-link.com/jp/support/download/archer-ax5400/#Firmware
Product
Source: [email protected]
https://www.tp-link.com/jp/support/download/deco-x50/v1/#Firmware
Product
Source: [email protected]
https://www.tp-link.com/jp/support/download/deco-xe200/#Firmware

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78

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