CVE-2026-30814
Modified Modified - Updated After Analysis
Stack-Based Buffer Overflow in TP-Link Archer AX53 tmpServer Module

Publication date: 2026-04-08

Last updated on: 2026-05-07

Assigner: TPLink

Description
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.
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Meta Information
Published
2026-04-08
Last Modified
2026-05-07
Generated
2026-06-16
AI Q&A
2026-04-09
EPSS Evaluated
2026-06-15
NVD
CVE-2026-30814
EUVD
EUVD-2026-20542
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
tp-link archer_ax53_firmware to 1.7.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Compliance Impact

The vulnerability allows an authenticated adjacent attacker to potentially execute arbitrary code, which could lead to modification of device state, exposure of sensitive data, or further compromise of device integrity.

Such exposure or compromise of sensitive data may negatively impact compliance with data protection standards and regulations like GDPR or HIPAA, which require safeguarding sensitive information and maintaining device integrity.

Executive Summary

This vulnerability is a stack-based buffer overflow found in the tmpServer module of the TP-Link Archer AX53 version 1.0. It allows an authenticated attacker who is adjacent (on the same network segment) to cause a segmentation fault by using a specially crafted configuration file. This fault can potentially lead to arbitrary code execution on the device.

Impact Analysis

Exploitation of this vulnerability can cause the device to crash and may allow an attacker to execute arbitrary code. This could enable the attacker to modify the device's state, expose sensitive data, or further compromise the integrity of the device.

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