# CVE-2019-5227: Security feature bypass in P30, P30 Pro, Mate 20, HiSuite

> Attackers can downgrade Huawei smartphones to vulnerable older versions by bypassing insufficient validation in HiSuite upgrade packages.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 29 Nov 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-qr6w-xx8m-93mv

## What is CVE-2019-5227?

CVE-2019-5227 is a medium-severity vulnerability in P30, P30 Pro, Mate 20, HiSuite, published on 29 Nov 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

P30, P30 Pro, Mate 20 smartphones with software of versions earlier than ELLE-AL00B 9.1.0.193(C00E190R2P1), versions earlier than VOGUE-AL00A 9.1.0.193(C00E190R2P1), versions earlier than Hima-AL00B 9.1.0.135(C00E133R2P1) and HiSuite with versions earlier than HiSuite 9.1.0.305 have a version downgrade vulnerability. The device and HiSuite software do not validate the upgrade package sufficiently, so that the system of smartphone can be downgraded to an older version.

Weakness: CWE-346 (Origin Validation Error)

## Which versions are affected by CVE-2019-5227?

It affects 4 products.


Products: Huawei Hisuite Firmware, Huawei Mate 20 Firmware, Huawei P30 Firmware, Huawei P30 Pro Firmware.

## How do I fix CVE-2019-5227?

No fix has been published for CVE-2019-5227 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-5227 being exploited?

There is no known exploitation of CVE-2019-5227 in the wild and no public exploit code.

## Other vulnerabilities in P30, P30 Pro, Mate 20, HiSuite

- [CVE-2019-5226](https://insights.sbomify.com/CVE-2019-5226/): Security feature bypass in P30, P30 Pro, Mate 20, HiSuite (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-5227 and fix it if it is affected.

What it is: CVE-2019-5227 is a medium-severity vulnerability in P30, P30 Pro, Mate 20, HiSuite, published on 29 Nov 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-5227 in the wild and no public exploit code.

Affected product: P30, P30 Pro, Mate 20, HiSuite. 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-2019-5227/ (Markdown: https://insights.sbomify.com/CVE-2019-5227/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-5227
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-5227
- OSV: https://osv.dev/vulnerability/CVE-2019-5227

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-5227/
Summaries are generated and may contain mistakes; the official description above is the record.