Vulnerability Monitor

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CVE-2023-27333

TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer AX21 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of command 0x422 provided to the tmpServer service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-19905.

Published

2024-05-03T02:15:10.273

Last Modified

2025-08-06T14:24:05.763

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.0: 6.8 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-121
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System tp-link archer_ax21_firmware 1.1.3 Yes
Hardware tp-link archer_ax21 - No
References