What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-08 · updated 2026-07-25
• Weakness: CWE-121

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.

Affected products

• TP-Link Systems Inc. Archer AX53 v1.0: before 1.7.1 — fixed in 1.7.1

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. Archer AX53 v1.0 1.7.1. Check the vendor advisory for mitigations.

References

• https://talosintelligence.com/vulnerability_reports/
• https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware
• https://www.tp-link.com/my/support/download/archer-ax53/v1/#Firmware
• https://www.tp-link.com/us/support/faq/5055/
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2302

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