# CVE-2026-22228: Improper Input Validation Leading to DoS on TP-Link Archer BE230

> An authenticated high-privilege user can cause a denial of service on TP-Link Archer BE230 routers by restoring a crafted configuration file.

- **Severity:** Medium 6.8 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Feb 2026
- **Updated:** 4 Feb 2026
- **Also known as:** GHSA-qh7q-x454-phcx

## What is CVE-2026-22228?

CVE-2026-22228 is a medium-severity denial of service vulnerability in TP-Link Systems Inc. Archer BE230 v1.2, 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

An authenticated user with high privileges may trigger a denial‑of‑service condition in TP-Link Archer BE230 v1.2 by restoring a crafted configuration file containing an excessively long parameter. Restoring such a file can cause the device to become unresponsive, requiring a reboot to restore normal operation.
This issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2026-22228?

It affects 1 product.


Products: Tp-Link Archer Be230 Firmware.

## How do I fix CVE-2026-22228?

No fix has been published for CVE-2026-22228 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-22228 being exploited?

There is no known exploitation of CVE-2026-22228 in the wild and no public exploit code.

## Other vulnerabilities in TP-Link Systems Inc. Archer BE230 v1.2

- [CVE-2026-22229](https://insights.sbomify.com/CVE-2026-22229/): Command Injection Vulnerability on TP-Link Archer BE230 v1.2 and Deco BE25 v1.0 (high 8.6)
- [CVE-2026-0630](https://insights.sbomify.com/CVE-2026-0630/): Command Injection Vulnerability on TP-Link Archer BE230 v1.2 and AXE75 v1.0 (high 8.5)
- [CVE-2026-0631](https://insights.sbomify.com/CVE-2026-0631/): Authenticated Command Injection Vulnerability in Surfshark VPN Login in multiple Archer products (high 8.5)
- [CVE-2026-22221](https://insights.sbomify.com/CVE-2026-22221/): Command Injection Vulnerability on TP-Link Archer BE230 v1.2 and BE3600 v1 (high 8.5)
- [CVE-2026-22222](https://insights.sbomify.com/CVE-2026-22222/): Command Injection Vulnerability on TP-Link Archer BE230 v1.2 and AXE75 v2 (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-22228 and fix it if it is affected.

What it is: CVE-2026-22228 is a medium-severity denial of service vulnerability in TP-Link Systems Inc. Archer BE230 v1.2, 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-2026-22228 in the wild and no public exploit code.

Affected product: TP-Link Systems Inc. Archer BE230 v1.2. 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-2026-22228/ (Markdown: https://insights.sbomify.com/CVE-2026-22228/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-22228
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-22228
- OSV: https://osv.dev/vulnerability/CVE-2026-22228

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-22228/
Summaries are generated and may contain mistakes; the official description above is the record.