# CVE-2022-34393: Code injection in BIOS

> A local authenticated attacker can exploit improper input validation in Dell BIOS to execute arbitrary code in SMRAM, requiring firmware updates.

- **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-6jp2-j3pm-hvjx

## What is CVE-2022-34393?

CVE-2022-34393 is a high-severity code injection vulnerability in Dell 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 an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2022-34393?

It affects 26 products.


Products: Dell G5 Se 5505 Firmware, Dell Inspiron 27 7775 Firmware, Dell Inspiron 3180 Firmware, Dell Inspiron 3185 Firmware, Dell Inspiron 3195 2-in-1 Firmware, Dell Inspiron 3275 Firmware, Dell Inspiron 3475 Firmware, Dell Inspiron 3505 Firmware, Dell Inspiron 3515 Firmware, Dell Inspiron 3585 Firmware, Dell Inspiron 3595 Firmware, Dell Inspiron 3785 Firmware, Dell Inspiron 5405 Firmware, Dell Inspiron 5415 Firmware, Dell Inspiron 5485 2-in-1 Firmware, Dell Inspiron 5485 Firmware, Dell Inspiron 5505 Firmware, Dell Inspiron 5515 Firmware, Dell Inspiron 5585 Firmware, Dell Inspiron 7375 Firmware and 6 more.

## How do I fix CVE-2022-34393?

No fix has been published for CVE-2022-34393 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-34393 being exploited?

There is no known exploitation of CVE-2022-34393 in the wild and no public exploit code.

## Other vulnerabilities in Dell BIOS

- [CVE-2022-34460](https://insights.sbomify.com/CVE-2022-34460/): Code injection in BIOS (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-34393 and fix it if it is affected.

What it is: CVE-2022-34393 is a high-severity code injection vulnerability in Dell 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-2022-34393 in the wild and no public exploit code.

Affected product: Dell 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-2022-34393/ (Markdown: https://insights.sbomify.com/CVE-2022-34393/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-34393
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-34393
- OSV: https://osv.dev/vulnerability/CVE-2022-34393

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-34393/
Summaries are generated and may contain mistakes; the official description above is the record.