CVE-2025-62673: TP-Link Archer AX53 and AX12 heap-based buffer overflow in tdpserver

CVE-2025-62673 · Severity: high · CVSS 8 · Published 2026-02-03

The TP-Link Archer AX53 and AX12 are Wi-Fi 6 routers used to provide wireless connectivity in homes and offices. A heap-based buffer overflow vulnerability in the tdpserver network service allows an attacker on the same local network to send a specially crafted packet that crashes the router or potentially executes malicious code, disrupting network access and potentially compromising the device.

Technologies: TP-Link Archer Ax53, TP-Link Archer Ax53 Firmware. Vendors: TP-Link.

Quick answers

Is CVE-2025-62673 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-62673 being exploited in the wild.
How severe is CVE-2025-62673?
High severity, with a CVSS score of 8, published 3 February 2026.
Which products and versions are affected?
TP-Link Archer AX12 v1.0 through 1.5.1 Build 20260721; TP-Link Archer Ax53 v1.0 through 1.3.1 Build 20241120.
Is there a fix for CVE-2025-62673?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-62673 attacked?
It is attacked from the adjacent network, in a network appliance.
Am I affected by CVE-2025-62673?
Check whether you run TP-Link Archer AX12, TP-Link Archer Ax53 or TP-Link Archer Ax53 Firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This is a heap-based buffer overflow vulnerability in the tdpserver module of TP-Link Archer routers. The vulnerable component improperly handles a maliciously formed field within network packets, leading to heap memory corruption. The attack requires network-adjacent access (LAN-based attack vector) and no authentication. A successful exploit can cause a segmentation fault (denial of service) or potentially enable arbitrary code execution with the privileges of the tdpserver process. Patches are available for both affected models.

Affected products

  • TP-Link Archer AX53 v1.0 through 1.3.1 Build 20241120
  • TP-Link Archer AX12 v1.0 through 1.5.1 Build 20260721

Timeline

  • 2026-02-03: disclosed

References

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