# CVE-2020-14099: Hardcoded credentials in Xiaomi Router AX1800,Xiaomi Rourer RM1800

> Attackers can decrypt user backup files using hard-coded keys to expose sensitive information like passwords on Xiaomi routers.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Apr 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-m528-9cc3-8r9h

## What is CVE-2020-14099?

CVE-2020-14099 is a high-severity vulnerability in Xiaomi Router AX1800,Xiaomi Rourer RM1800, published on 8 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

On Xiaomi router AX1800 rom version < 1.0.336 and RM1800 root version < 1.0.26, the encryption scheme for a user's backup files uses hard-coded keys, which can expose sensitive information such as a user's password.

Weakness: CWE-798 (Use of Hard-coded Credentials)

## Which versions are affected by CVE-2020-14099?

It affects 2 products.


Products: Mi Ax1800 Firmware, Mi Rm1800 Firmware.

## How do I fix CVE-2020-14099?

No fix has been published for CVE-2020-14099 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-14099 being exploited?

There is no known exploitation of CVE-2020-14099 in the wild and no public exploit code.

## Other vulnerabilities in Xiaomi Router AX1800,Xiaomi Rourer RM1800

- [CVE-2020-14098](https://insights.sbomify.com/CVE-2020-14098/): Auth bypass in Xiaomi route RM1800 (high 7.5)
- [CVE-2020-14101](https://insights.sbomify.com/CVE-2020-14101/): Information disclosure in Xiaomi route RM1800 (high 7.5)
- [CVE-2020-14102](https://insights.sbomify.com/CVE-2020-14102/): Command injection in Xiaomi route RM1800 (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-14099 and fix it if it is affected.

What it is: CVE-2020-14099 is a high-severity vulnerability in Xiaomi Router AX1800,Xiaomi Rourer RM1800, published on 8 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-14099 in the wild and no public exploit code.

Affected product: Xiaomi Router AX1800,Xiaomi Rourer RM1800. 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-2020-14099/ (Markdown: https://insights.sbomify.com/CVE-2020-14099/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-14099
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-14099
- OSV: https://osv.dev/vulnerability/CVE-2020-14099

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-14099/
Summaries are generated and may contain mistakes; the official description above is the record.