# CVE-2022-34399: Information disclosure in CPG BIOS

> A malicious admin can exploit a buffer access flaw in Dell Alienware BIOS to leak sensitive SMRAM sections.

- **Severity:** Medium 5.1 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N`)
- **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-xcr3-2hg5-6c3w

## What is CVE-2022-34399?

CVE-2022-34399 is a medium-severity 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 Alienware m17 R5 BIOS version prior to 1.2.2 contain a buffer access vulnerability. A malicious user with admin privileges could potentially exploit this vulnerability by sending input larger than expected in order to leak certain sections of SMRAM.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-805 (Buffer Access with Incorrect Length Value)

## Which versions are affected by CVE-2022-34399?

It affects 15 products.


Products: Dell Alienware M15 A6 Firmware, Dell Alienware M15 Ryzen Edition R5 Firmware, Dell Alienware M17 Ryzen Edition R5 Firmware, Dell G15 5515 Firmware, Dell G15 5525 Firmware, Dell Inspiron 3505 Firmware, Dell Inspiron 3515 Firmware, Dell Inspiron 3525 Firmware, Dell Inspiron 3585 Firmware, Dell Inspiron 3595 Firmware, Dell Inspiron 3785 Firmware, Dell Vostro 3405 Firmware, Dell Vostro 3425 Firmware, Dell Vostro 3515 Firmware, Dell Vostro 3525 Firmware.

## How do I fix CVE-2022-34399?

No fix has been published for CVE-2022-34399 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-34399 being exploited?

There is no known exploitation of CVE-2022-34399 in the wild and no public exploit code.

## Other vulnerabilities in Dell CPG BIOS

- [CVE-2022-34401](https://insights.sbomify.com/CVE-2022-34401/): Memory corruption in CPG BIOS (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-34399 and fix it if it is affected.

What it is: CVE-2022-34399 is a medium-severity 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-2022-34399 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-2022-34399/ (Markdown: https://insights.sbomify.com/CVE-2022-34399/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-34399
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-34399
- OSV: https://osv.dev/vulnerability/CVE-2022-34399

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-34399/
Summaries are generated and may contain mistakes; the official description above is the record.