# CVE-2018-7940: Auth bypass in HUAWEI Mate 10, HUAWEI Mate 10 Pro

> An attacker with high privilege can bypass the activation lock on Huawei Mate 10 devices through specific operations.

- **Severity:** Medium 6.2 (`CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 10 May 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-vqm5-7rwj-fpcv

## What is CVE-2018-7940?

CVE-2018-7940 is a medium-severity authentication bypass vulnerability in HUAWEI Mate 10, HUAWEI Mate 10 Pro, published on 10 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Huawei smart phones Mate 10 and Mate 10 Pro with earlier versions than 8.0.0.129(SP2C00) and earlier versions than 8.0.0.129(SP2C01) have an authentication bypass vulnerability. An attacker with high privilege obtains the smart phone and bypass the activation function by some specific operations.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2018-7940?

It affects 2 products.


Products: Huawei Mate 9 Firmware, Huawei Mate 9 Pro Firmware.

## How do I fix CVE-2018-7940?

No fix has been published for CVE-2018-7940 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7940 being exploited?

There is no known exploitation of CVE-2018-7940 in the wild and no public exploit code.

## Other vulnerabilities in HUAWEI Mate 10, HUAWEI Mate 10 Pro

- [CVE-2017-15316](https://insights.sbomify.com/CVE-2017-15316/): Use after free in Mate 9 (high 7.8)
- [CVE-2017-2716](https://insights.sbomify.com/CVE-2017-2716/): Memory corruption in Mate 9 (high 7.8)
- [CVE-2017-8142](https://insights.sbomify.com/CVE-2017-8142/): Use after free in Mate 9, Mate 9 Pro (high 7.8)
- [CVE-2017-2706](https://insights.sbomify.com/CVE-2017-2706/): Path traversal in Mate 9 (high 7.1)
- [CVE-2017-2707](https://insights.sbomify.com/CVE-2017-2707/): Privilege escalation in Mate 9 (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7940 and fix it if it is affected.

What it is: CVE-2018-7940 is a medium-severity authentication bypass vulnerability in HUAWEI Mate 10, HUAWEI Mate 10 Pro, published on 10 May 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-2018-7940 in the wild and no public exploit code.

Affected product: HUAWEI Mate 10, HUAWEI Mate 10 Pro. 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-2018-7940/ (Markdown: https://insights.sbomify.com/CVE-2018-7940/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7940
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7940
- OSV: https://osv.dev/vulnerability/CVE-2018-7940

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-7940/
Summaries are generated and may contain mistakes; the official description above is the record.