CVE-2023-27346

HIGH

TP-Link Archer AX21 Firmware - Stack-based Buffer Overflow via Firmware Image Parsing

Title source: llm
STIX 2.1

Description

TP-Link AX1800 Firmware Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link AX1800 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of firmware images. 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-19703.

References (1)

Core 1
Core References
Third Party Advisory x_research-advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-377/

Scores

CVSS v3 8.8
EPSS 0.0080
EPSS Percentile 74.3%
Attack Vector ADJACENT_NETWORK
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-121
Status published
Products (1)
tp-link/archer_ax21_firmware 1.1.1 build20220603
Published May 03, 2024
Tracked Since Feb 18, 2026