# CVE-2019-14558: Denial of service in Intel BIOS

> An authenticated user with adjacent access can cause a denial of service in Intel BIOS firmware due to insufficient control flow management.

- **Severity:** Medium 5.7 (`CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:** Yes
- **Published:** 5 Oct 2020
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-14558, GHSA-q8x8-jp4q-9cjj, UBUNTU-CVE-2019-14558

## What is CVE-2019-14558?

CVE-2019-14558 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 5 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Insufficient control flow management in BIOS firmware for 8th, 9th, 10th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 & 5000 Series Processors may allow an authenticated user to potentially enable denial of service via adjacent access.

## Which versions are affected by CVE-2019-14558?

It affects 2 products.


Products: Debian Debian Linux, Intel Bios.

## How do I fix CVE-2019-14558?

Apply the vendor's patch.

## Is CVE-2019-14558 being exploited?

There is no known exploitation of CVE-2019-14558 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-14558 and fix it if it is affected.

What it is: CVE-2019-14558 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 5 Oct 2020. 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-2019-14558 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2019-14558/ (Markdown: https://insights.sbomify.com/CVE-2019-14558/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-14558
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-14558
- OSV: https://osv.dev/vulnerability/CVE-2019-14558

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-14558/
Summaries are generated and may contain mistakes; the official description above is the record.