# CVE-2022-26864: Security feature bypass in CPG BIOS

> A local attacker can bypass System Management Mode security controls by sending malicious input to an SMI in Dell BIOS.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L`)
- **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:** 23 Jun 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-rw55-9h5c-57pv

## What is CVE-2022-26864?

CVE-2022-26864 is a medium-severity vulnerability in Dell CPG BIOS, published on 23 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Prior Dell BIOS versions contain an Input Validation vulnerability. A locally authenticated malicious user could potentially exploit this vulnerability by sending malicious input to an SMI in order to bypass security controls in SMM.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2022-26864?

It affects 34 products.


Products: Dell Alienware M15 R5 Firmware, Dell G15 5515 Firmware, Dell G5 Se 5505 Firmware, Dell Inspiron 14 5425 Firmware, Dell Inspiron 27 7775 Firmware, Dell Inspiron 3180 Firmware, Dell Inspiron 3185 Firmware, Dell Inspiron 3195 Firmware, Dell Inspiron 3275 Firmware, Dell Inspiron 3475 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 Inspiron 5405 Firmware, Dell Inspiron 5415 All-in-One Firmware, Dell Inspiron 5415 Firmware, Dell Inspiron 5485 Firmware and 14 more.

## How do I fix CVE-2022-26864?

No fix has been published for CVE-2022-26864 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-26864 being exploited?

There is no known exploitation of CVE-2022-26864 in the wild and no public exploit code.

## Other vulnerabilities in Dell CPG BIOS

- [CVE-2022-26862](https://insights.sbomify.com/CVE-2022-26862/): Security feature bypass in CPG BIOS (medium 6.3)
- [CVE-2022-26863](https://insights.sbomify.com/CVE-2022-26863/): Security feature bypass in CPG BIOS (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-26864 and fix it if it is affected.

What it is: CVE-2022-26864 is a medium-severity vulnerability in Dell CPG BIOS, published on 23 Jun 2022. 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-2022-26864 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-2022-26864/ (Markdown: https://insights.sbomify.com/CVE-2022-26864/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-26864
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-26864
- OSV: https://osv.dev/vulnerability/CVE-2022-26864

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-26864/
Summaries are generated and may contain mistakes; the official description above is the record.