# CVE-2022-34401: Memory corruption in CPG BIOS

> A local attacker can exploit a stack buffer overflow in Dell BIOS via SMI to execute arbitrary code in SMRAM, requiring a firmware patch.

- **Severity:** High 7.5 (`CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/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:** 18 Jan 2023
- **Updated:** 3 Apr 2025
- **Also known as:** GHSA-xr3m-j4q9-hqr4

## What is CVE-2022-34401?

CVE-2022-34401 is a high-severity memory corruption vulnerability in Dell CPG BIOS, published on 18 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Dell BIOS contains a stack based buffer overflow vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to send larger than expected input to a parameter in order to gain arbitrary code execution in SMRAM.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2022-34401?

It affects 3 products.


Products: Dell Alienware M15 A6 Firmware, Dell Alienware M17 R5 Firmware, Dell G15 5525 Firmware.

## How do I fix CVE-2022-34401?

No fix has been published for CVE-2022-34401 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-34401 being exploited?

There is no known exploitation of CVE-2022-34401 in the wild and no public exploit code.

## Other vulnerabilities in Dell CPG BIOS

- [CVE-2022-34399](https://insights.sbomify.com/CVE-2022-34399/): Information disclosure in CPG BIOS (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-34401 and fix it if it is affected.

What it is: CVE-2022-34401 is a high-severity memory corruption vulnerability in Dell CPG BIOS, published on 18 Jan 2023. 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-2022-34401 in the wild and no public exploit code.

Affected product: Dell CPG BIOS. 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-2022-34401/ (Markdown: https://insights.sbomify.com/CVE-2022-34401/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-34401
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-34401
- OSV: https://osv.dev/vulnerability/CVE-2022-34401

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-34401/
Summaries are generated and may contain mistakes; the official description above is the record.