# CVE-2026-41037: Missing Rate Limiting Vulnerability in Quantum Networks Router QN-I-470

> Attackers can brute force admin credentials due to missing rate limiting, gaining root access to the router.

- **Severity:** High 8.7 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Apr 2026
- **Updated:** 21 Apr 2026
- **Also known as:** GHSA-whhc-f8fh-m5cr

## What is CVE-2026-41037?

CVE-2026-41037 is a high-severity authentication bypass vulnerability in Quantum Networks Router QN-I-470, published on 21 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

This vulnerability exists in Quantum Networks router due to missing rate limiting and CAPTCHA protection for failed login attempts in the web-based management interface. An attacker on the same network could exploit this vulnerability by performing brute force attacks against administrative credentials, leading to unauthorized access with root privileges on the targeted device.

Weakness: CWE-307 (Improper Restriction of Excessive Authentication Attempts)

## Which versions are affected by CVE-2026-41037?

It affects 1 product.


Products: Qntmnet Qn-I-470 Firmware.

## How do I fix CVE-2026-41037?

No fix has been published for CVE-2026-41037 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-41037 being exploited?

There is no known exploitation of CVE-2026-41037 in the wild and no public exploit code.

## Other vulnerabilities in Quantum Networks Router QN-I-470

- [CVE-2026-41036](https://insights.sbomify.com/CVE-2026-41036/): Command Injection Vulnerability in Quantum Networks Router QN-I-470 (high 8.7)
- [CVE-2026-41039](https://insights.sbomify.com/CVE-2026-41039/): Information Disclosure Vulnerability in Quantum Networks Router QN-I-470 (high 8.7)
- [CVE-2026-41038](https://insights.sbomify.com/CVE-2026-41038/): Weak Password Policy Vulnerability in Quantum Networks Router QN-I-470 (high 7.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-41037 and fix it if it is affected.

What it is: CVE-2026-41037 is a high-severity authentication bypass vulnerability in Quantum Networks Router QN-I-470, published on 21 Apr 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-2026-41037 in the wild and no public exploit code.

Affected product: Quantum Networks Router QN-I-470. 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-2026-41037/ (Markdown: https://insights.sbomify.com/CVE-2026-41037/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-41037
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41037
- OSV: https://osv.dev/vulnerability/CVE-2026-41037

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-41037/
Summaries are generated and may contain mistakes; the official description above is the record.