# CVE-2018-7929: Auth bypass in Mate RS

> An attacker can bypass the lock screen on Huawei Mate RS smartphones to unlock and use the device, potentially accessing private data.

- **Severity:** Medium 6.8 (`CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 18 Sep 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-x26f-vx5q-2cxf

## What is CVE-2018-7929?

CVE-2018-7929 is a medium-severity authentication bypass vulnerability in Huawei Technologies Co., Ltd. Mate RS, published on 18 Sep 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Huawei Mate RS smartphones with the versions before NEO-AL00D 8.1.0.167(C786) have a lock-screen bypass vulnerability. An attacker could unlock and use the phone through certain operations.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2018-7929?

It affects 1 product.


Products: Huawei Mate Rs Firmware.

## How do I fix CVE-2018-7929?

No fix has been published for CVE-2018-7929 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7929 being exploited?

There is no known exploitation of CVE-2018-7929 in the wild and no public exploit code.

## Other vulnerabilities in Huawei Technologies Co., Ltd. Mate RS

- [CVE-2019-5230](https://insights.sbomify.com/CVE-2019-5230/): Other in P20 Pro, P20, Mate RS (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7929 and fix it if it is affected.

What it is: CVE-2018-7929 is a medium-severity authentication bypass vulnerability in Huawei Technologies Co., Ltd. Mate RS, published on 18 Sep 2018. 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-2018-7929 in the wild and no public exploit code.

Affected product: Huawei Technologies Co., Ltd. Mate RS. 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-2018-7929/ (Markdown: https://insights.sbomify.com/CVE-2018-7929/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7929
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7929
- OSV: https://osv.dev/vulnerability/CVE-2018-7929

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-7929/
Summaries are generated and may contain mistakes; the official description above is the record.