CVE-2026-30814 HIGH

CVE-2026-30814: Buffer Overflow Vulnerability in TP-Link AX53

Vendor Tp-Link Systems Inc.
Product AX53 v1.0
Weakness CWE-121
Published April 8, 2026
Last update May 7, 2026

CVSS base score

7.3/10
Attack vector Adjacent
Attack complexity High
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

What the vulnerability does

01Description

A stack-based buffer overflow in the tmpServer module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to trigger a segmentation fault and potentially execute arbitrary code via a specially crafted configuration file. Successful exploitation may cause a crash and could allow arbitrary code execution, enabling modification of device state, exposure of sensitive data, or further compromise of device integrity. This issue affects AX53 v1.0: before 1.7.1 Build 20260213.

Key dates

02Disclosure timeline

April 8, 2026 CVE published
May 7, 2026 Record updated