# CVE-2023-28063: Integer overflow in CPG BIOS

> A local authenticated administrator can exploit a signed-to-unsigned conversion error in Dell BIOS to cause a denial of service.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/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:** 6 Feb 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-x379-72wq-8vwf

## What is CVE-2023-28063?

CVE-2023-28063 is a medium-severity vulnerability in Dell Chengming 3990 Firmware, published on 6 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Dell BIOS contains a Signed to Unsigned Conversion Error vulnerability. A local authenticated malicious user with admin privileges could potentially exploit this vulnerability, leading to denial of service.

Weakness: CWE-681 (Incorrect Conversion between Numeric Types), CWE-195 (Signed to Unsigned Conversion Error)

## Which versions are affected by CVE-2023-28063?

It affects 291 products.


Products: Dell Alienware M15 R6 Firmware, Dell Alienware M15 R7 Firmware, Dell Chengming 3900 Firmware, Dell Chengming 3901 Firmware, Dell Chengming 3910 Firmware, Dell Chengming 3911 Firmware, Dell Chengming 3990 Firmware, Dell Chengming 3991 Firmware, Dell G15 5510 Firmware, Dell G15 5511 Firmware, Dell G15 5520 Firmware, Dell G3 3500 Firmware, Dell G5 15 5590 Firmware, Dell G5 5000 Firmware, Dell G7 15 7500 Firmware, Dell G7 15 7590 Firmware, Dell G7 17 7700 Firmware, Dell G7 17 7790 Firmware, Dell Inspiron 13 5320 Firmware, Dell Inspiron 14 5410 Firmware and 271 more.

## How do I fix CVE-2023-28063?

No fix has been published for CVE-2023-28063 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-28063 being exploited?

There is no known exploitation of CVE-2023-28063 in the wild and no public exploit code.

## Other vulnerabilities in Dell Chengming 3990 Firmware

- [CVE-2024-52541](https://insights.sbomify.com/CVE-2024-52541/): Auth bypass in Dell Client Platform BIOS (high 8.2)
- [CVE-2022-26861](https://insights.sbomify.com/CVE-2022-26861/): Code injection in CPG BIOS (high 7.9)
- [CVE-2022-34403](https://insights.sbomify.com/CVE-2022-34403/): Memory corruption in CPG BIOS (high 7.5)
- [CVE-2022-26860](https://insights.sbomify.com/CVE-2022-26860/): Memory corruption in CPG BIOS (high 7.5)
- [CVE-2021-21572](https://insights.sbomify.com/CVE-2021-21572/): Memory corruption in BIOSConnect (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-28063 and fix it if it is affected.

What it is: CVE-2023-28063 is a medium-severity vulnerability in Dell Chengming 3990 Firmware, published on 6 Feb 2024. 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-2023-28063 in the wild and no public exploit code.

Affected product: Dell Chengming 3990 Firmware. 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-2023-28063/ (Markdown: https://insights.sbomify.com/CVE-2023-28063/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-28063
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-28063
- OSV: https://osv.dev/vulnerability/CVE-2023-28063

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-28063/
Summaries are generated and may contain mistakes; the official description above is the record.