CVE-2025-62673 Heap-based Buffer Overflow Vulnerability in Archer AX53 and AX12

What is CVE-2025-62673?

CVE-2025-62673 is a high-severity memory corruption vulnerability in TP-Link Systems Inc. Archer AX12 v1, 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 Archer AX53 v1.0 and AX12 v1.0 (tdpserver modules) allows adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing a maliciously formed field.

This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120 and Archer AX12 v1.0: up to 1.5.1 Build 20260721.

Weakness: CWE-122

Which versions are affected by CVE-2025-62673?

It affects 1 product.

Products include Tp-Link Archer Ax53 Firmware.

How do I fix CVE-2025-62673?

No fix has been published for CVE-2025-62673 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-2025-62673 being exploited?

There is no known exploitation of CVE-2025-62673 in the wild and no public exploit code.

Other vulnerabilities in TP-Link Systems Inc. Archer AX12 v1

• CVE-2026-30815 OS Command Injection Vulnerability in OpenVPN Module in TP-Link AX53 High 8.5
• CVE-2026-30818 OS Command Injection Vulnerability in dnsmasq Module in TP-Link AX53 High 8.5
• CVE-2025-15608 Buffer Overflow in Network Probe Handling Function of TP-Link Archer AX53 + Archer AX55 High 7.7
• CVE-2026-30814 Buffer Overflow Vulnerability in TP-Link AX53 High 7.3
• CVE-2025-15607 Authenticated Command Injection in mcsd Service of TP-Link Archer AX53 High 7.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-9m5j-8278-v84q.