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

> Adjacent attackers can cause crashes or execute arbitrary code on TP-Link Archer routers via malicious network packets.

- **Severity:** High 8.6 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Feb 2026
- **Updated:** 22 Sep 2026
- **Also known as:** GHSA-9m5j-8278-v84q

## 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 (Heap-based Buffer Overflow)

## Which versions are affected by CVE-2025-62673?

It affects 1 product.


Products: 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.

## 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](https://insights.sbomify.com/CVE-2026-30815/): OS Command Injection Vulnerability in OpenVPN Module in TP-Link AX53 (high 8.5)
- [CVE-2026-30818](https://insights.sbomify.com/CVE-2026-30818/): OS Command Injection Vulnerability in dnsmasq Module in TP-Link AX53 (high 8.5)
- [CVE-2025-15608](https://insights.sbomify.com/CVE-2025-15608/): Buffer Overflow in Network Probe Handling Function of TP-Link Archer AX53 + Archer AX55 (high 7.7)
- [CVE-2026-30814](https://insights.sbomify.com/CVE-2026-30814/): Buffer Overflow Vulnerability in TP-Link AX53 (high 7.3)
- [CVE-2025-15607](https://insights.sbomify.com/CVE-2025-15607/): Authenticated Command Injection in mcsd Service of TP-Link Archer AX53 (high 7.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-62673 and fix it if it is affected.

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

Affected product: TP-Link Systems Inc. Archer AX12 v1. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-62673/ (Markdown: https://insights.sbomify.com/CVE-2025-62673/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-62673
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62673
- OSV: https://osv.dev/vulnerability/CVE-2025-62673

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-62673/
Summaries are generated and may contain mistakes; the official description above is the record.