CVE-2025-59487 Heap-based Buffer Overflow Vulnerability in TP-Link Archer AX53

High 7.3 Published 3 Feb 2026 Updated 16 Mar 2026

Authenticated adjacent attackers can trigger a heap buffer overflow in TP-Link Archer AX53 routers, potentially executing arbitrary code or causing a crash.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-59487?

CVE-2025-59487 is a high-severity memory corruption vulnerability in TP-Link Systems Inc. Archer AX53 v1.0, published on 3 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code. The vulnerability arises from improper validation of a packet field whose offset is used to determine the write location in memory. By crafting a packet with a manipulated field offset, an attacker can redirect writes to arbitrary memory locations.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.

Weakness: CWE-122

Which versions are affected by CVE-2025-59487?

It affects 1 product.

Products include Tp-Link Archer Ax53 Firmware.

How do I fix CVE-2025-59487?

No fix has been published for CVE-2025-59487 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-59487 being exploited?

There is no known exploitation of CVE-2025-59487 in the wild and no public exploit code.

Sources

Also known as GHSA-8575-qvr6-9797.