CVE-2023-27359

HIGH

TP-Link Archer AX21 Firmware - Unauthenticated Firewall Rule Race Condition in hotplugd

Title source: llm
STIX 2.1

Description

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.

References (1)

Core 1
Core References
Third Party Advisory x_research-advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-452/

Scores

CVSS v3 8.1
EPSS 0.0184
EPSS Percentile 83.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-362
Status published
Products (1)
tp-link/archer_ax21_firmware 1.1.1 build20220603
Published May 03, 2024
Tracked Since Feb 18, 2026