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

Source: https://junglewise.ai/threats/cve-2025-62673-tp-link-archer-ax53-and-ax12-heap-based-buffer-overflow-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-02-03. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/archer-ax53), [TP-Link Archer Ax53 Firmware](https://junglewise.ai/threats/technologies/archer-ax53-firmware). Vendors: [TP-Link](https://junglewise.ai/threats/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

- [https://talosintelligence.com/vulnerability_reports/](https://talosintelligence.com/vulnerability_reports/)
- [https://www.tp-link.com/en/support/download/archer-ax12/](https://www.tp-link.com/en/support/download/archer-ax12/)

## Related threats

- [TP-Link Archer Routers OS command injection in VPN module](https://junglewise.ai/threats/cve-2026-9151-tp-link-archer-routers-os-command-injection-in-vpn-module)
- [TP-Link Archer AX53 OS command injection in dnsmasq](https://junglewise.ai/threats/cve-2026-30818-tp-link-archer-ax53-os-command-injection-in-dnsmasq)
- [TP-Link Archer AX53 arbitrary file read in OpenVPN module](https://junglewise.ai/threats/cve-2026-30817-tp-link-archer-ax53-arbitrary-file-read-in-openvpn-module)
- [TP-Link Archer AX53 arbitrary file read in OpenVPN module](https://junglewise.ai/threats/cve-2026-30816-tp-link-archer-ax53-arbitrary-file-read-in-openvpn-module)
- [TP-Link Archer AX53 OS command injection in OpenVPN module](https://junglewise.ai/threats/cve-2026-30815-tp-link-archer-ax53-os-command-injection-in-openvpn-module)