CVE-2023-27359

TP-Link AX1800 hotplugd Firewall Rule Race Condition Vulnerability. This vulnerability allows remote attackers to gain access to LAN-side services on affected installations of TP-Link Archer AX21 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the hotplugd daemon. The issue results from firewall rule handling that allows an attacker access to resources that should be available to the LAN interface only. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the root user. . Was ZDI-CAN-19664.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.zerodayinitiative.com/advisories/ZDI-23-452/	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-452/	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tp-link:archer_ax21_firmware:1.1.1:build20220603:*:*:*:*:*:*

cpe:2.3:h:tp-link:archer_ax21:3.0:*:*:*:*:*:*:*

History

06 Aug 2025, 14:21

Type	Values Removed	Values Added
CPE		cpe:2.3:h:tp-link:archer_ax21:3.0:::::::* cpe:2.3:o:tp-link:archer_ax21_firmware:1.1.1:build20220603::::::
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-23-452/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-23-452/ - Third Party Advisory
First Time		Tp-link archer Ax21 Firmware Tp-link Tp-link archer Ax21
CVSS	v2 : ~~unknown~~ v3 : ~~9.8~~	v2 : unknown v3 : 8.1

Information

Published : 2024-05-03 02:15

Updated : 2025-08-06 14:21

NVD link : CVE-2023-27359

Mitre link : CVE-2023-27359

CVE.ORG link : CVE-2023-27359

JSON object : View

Products Affected

tp-link

archer_ax21_firmware
archer_ax21

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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