# CVE-2023-47166: Missing authorization in UR32L

> An unauthenticated attacker can send a crafted network request to the Milesight UR32L to perform an arbitrary firmware update, leading to full device compromise.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 May 2024
- **Updated:** 4 Nov 2025
- **Also known as:** GHSA-963g-qffh-rx88

## What is CVE-2023-47166?

CVE-2023-47166 is a high-severity missing authorization vulnerability in Milesight Ur32l Firmware, published on 1 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A firmware update vulnerability exists in the luci2-io file-import functionality of Milesight UR32L v32.3.0.7-r2. A specially crafted network request can lead to arbitrary firmware update. An attacker can send a network request to trigger this vulnerability.

Weakness: CWE-306 (Missing Authentication for Critical Functionality), CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2023-47166?

It affects 1 product.


Products: Milesight Ur32l Firmware.

## How do I fix CVE-2023-47166?

No fix has been published for CVE-2023-47166 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-47166 being exploited?

There is no known exploitation of CVE-2023-47166 in the wild and no public exploit code.

## Other vulnerabilities in Milesight Ur32l Firmware

- [CVE-2023-23902](https://insights.sbomify.com/CVE-2023-23902/): Memory corruption in UR32L (critical 9.8)
- [CVE-2023-22299](https://insights.sbomify.com/CVE-2023-22299/): Command injection in UR32L (high 8.8)
- [CVE-2023-22653](https://insights.sbomify.com/CVE-2023-22653/): Command injection in UR32L (high 8.8)
- [CVE-2023-24018](https://insights.sbomify.com/CVE-2023-24018/): Memory corruption in UR32L (high 8.8)
- [CVE-2023-24519](https://insights.sbomify.com/CVE-2023-24519/): Command injection in UR32L (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-47166 and fix it if it is affected.

What it is: CVE-2023-47166 is a high-severity missing authorization vulnerability in Milesight Ur32l Firmware, published on 1 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-47166 in the wild and no public exploit code.

Affected product: Milesight Ur32l Firmware. 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-2023-47166/ (Markdown: https://insights.sbomify.com/CVE-2023-47166/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-47166
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-47166
- OSV: https://osv.dev/vulnerability/CVE-2023-47166

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-47166/
Summaries are generated and may contain mistakes; the official description above is the record.