# CVE-2020-14127: Memory corruption in Redmi K40 ,Redmi Note10 Pro

> A heap overflow in Xiaomi phones allows remote attackers to cause a denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Jul 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-vx8g-5qq9-m5gj

## What is CVE-2020-14127?

CVE-2020-14127 is a high-severity memory corruption vulnerability in Redmi K40 ,Redmi Note10 Pro, published on 14 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A denial of service vulnerability exists in some Xiaomi models of phones. The vulnerability is caused by heap overflow and can be exploited by attackers to make remote denial of service.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2020-14127?

It affects 1 product.


Products: Mi Miui.

## How do I fix CVE-2020-14127?

No fix has been published for CVE-2020-14127 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-14127 being exploited?

There is no known exploitation of CVE-2020-14127 in the wild and no public exploit code.

## Other vulnerabilities in Redmi K40 ,Redmi Note10 Pro

- [CVE-2020-14120](https://insights.sbomify.com/CVE-2020-14120/): Missing authorization in MIUI (high 8.8)
- [CVE-2020-14125](https://insights.sbomify.com/CVE-2020-14125/): Memory corruption in Redmi Note 11 ,Redmi Note 9T (high 7.5)
- [CVE-2020-14123](https://insights.sbomify.com/CVE-2020-14123/): Use after free in MIUI (high 7.5)
- [CVE-2020-14122](https://insights.sbomify.com/CVE-2020-14122/): Information disclosure in MIUI (medium 5.5)
- [CVE-2020-14105](https://insights.sbomify.com/CVE-2020-14105/): Information disclosure in Xiaomi 10 (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-14127 and fix it if it is affected.

What it is: CVE-2020-14127 is a high-severity memory corruption vulnerability in Redmi K40 ,Redmi Note10 Pro, published on 14 Jul 2022. 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-2020-14127 in the wild and no public exploit code.

Affected product: Redmi K40 ,Redmi Note10 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-2020-14127/ (Markdown: https://insights.sbomify.com/CVE-2020-14127/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-14127
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-14127
- OSV: https://osv.dev/vulnerability/CVE-2020-14127

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-14127/
Summaries are generated and may contain mistakes; the official description above is the record.