# CVE-2023-26299: Race condition in HP PC products using AMI UEFI Firmware

> A TOCTOU race condition in HP PC BIOS allows attackers to execute arbitrary code, requiring firmware updates from AMI.

- **Severity:** High 7.0 (`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Jun 2023
- **Updated:** 4 Dec 2024
- **Also known as:** GHSA-hwjr-m4gg-39hg

## What is CVE-2023-26299?

CVE-2023-26299 is a high-severity vulnerability in HP PC products using AMI UEFI Firmware, published on 30 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A potential Time-of-Check to Time-of-Use (TOCTOU) vulnerability has been identified in certain HP PC products using AMI UEFI Firmware (system BIOS), which might allow arbitrary code execution. AMI has released updates to mitigate the potential vulnerability.

Weakness: CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition)

## Which versions are affected by CVE-2023-26299?

It affects 59 products.


Products: Hp 200 G3 Firmware, Hp 200 G4 22 All-in-One Firmware, Hp 200 Pro G4 22 All-in-One Firmware, Hp 205 G4 22 All-in-One Firmware, Hp 205 Pro G4 22 All-in-One Firmware, Hp 240 G10 Firmware, Hp 245 G6 Firmware, Hp 245 G7 Firmware, Hp 245 G8 Firmware, Hp 247 G8 Firmware, Hp 250 G10 Firmware, Hp 255 G10 Firmware, Hp 260 G4 Desktop Mini Firmware, Hp 280 G3 Firmware, Hp 280 G4 Firmware, Hp 280 G4 Microtower Firmware, Hp 280 G5 Firmware, Hp 280 G5 Small Form Factor Firmware, Hp 280 G6 Firmware, Hp 280 G8 Microtower Firmware and 39 more.

## How do I fix CVE-2023-26299?

No fix has been published for CVE-2023-26299 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-26299 being exploited?

There is no known exploitation of CVE-2023-26299 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-26299 and fix it if it is affected.

What it is: CVE-2023-26299 is a high-severity vulnerability in HP PC products using AMI UEFI Firmware, published on 30 Jun 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-2023-26299 in the wild and no public exploit code.

Affected product: HP PC products using AMI UEFI 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-2023-26299/ (Markdown: https://insights.sbomify.com/CVE-2023-26299/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-26299
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-26299
- OSV: https://osv.dev/vulnerability/CVE-2023-26299

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-26299/
Summaries are generated and may contain mistakes; the official description above is the record.