# CVE-2020-12830: Memory corruption in n/a

> Stack buffer overflows in Western Digital My Cloud devices allow attackers to execute arbitrary code and escalate privileges.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Oct 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-hmww-h9vv-9rgj

## What is CVE-2020-12830?

CVE-2020-12830 is a critical memory corruption vulnerability in n/a, published on 27 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.

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

## Which versions are affected by CVE-2020-12830?

It affects 1 product.


Products: Westerndigital My Cloud Firmware.

## How do I fix CVE-2020-12830?

No fix has been published for CVE-2020-12830 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-12830 being exploited?

There is no known exploitation of CVE-2020-12830 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-27744](https://insights.sbomify.com/CVE-2020-27744/): Command injection in n/a (critical 9.8)
- [CVE-2020-25765](https://insights.sbomify.com/CVE-2020-25765/): Command injection in n/a (critical 9.8)
- [CVE-2020-27158](https://insights.sbomify.com/CVE-2020-27158/): Command injection in n/a (critical 9.8)
- [CVE-2020-27159](https://insights.sbomify.com/CVE-2020-27159/): Command injection in n/a (critical 9.8)
- [CVE-2020-27160](https://insights.sbomify.com/CVE-2020-27160/): Path traversal in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-12830 and fix it if it is affected.

What it is: CVE-2020-12830 is a critical memory corruption vulnerability in n/a, published on 27 Oct 2020. 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-2020-12830 in the wild and no public exploit code.

Affected product: n/a. 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-2020-12830/ (Markdown: https://insights.sbomify.com/CVE-2020-12830/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12830
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12830
- OSV: https://osv.dev/vulnerability/CVE-2020-12830

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-12830/
Summaries are generated and may contain mistakes; the official description above is the record.