# CVE-2020-24457: Privilege escalation in Intel BIOS

> Unauthenticated attackers with physical access can escalate privileges, cause denial of service, or disclose information via a logic error in Intel BIOS firmware.

- **Severity:** High 7.6 (`CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-g8f7-67xp-2h72

## What is CVE-2020-24457?

CVE-2020-24457 is a high-severity vulnerability in Intel BIOS, published on 14 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Logic error in BIOS firmware for 8th, 9th and 10th Generation Intel(R) Core(TM) Processors may allow an unauthenticated user to potentially enable escalation of privilege, denial of service and/or information disclosure via physical access.

## Which versions are affected by CVE-2020-24457?

It affects 50 products.


Products: Intel Core I7-10510u Firmware, Intel Core I7-10510y Firmware, Intel Core I7-1060g7 Firmware, Intel Core I7-10610u Firmware, Intel Core I7-1065g7 Firmware, Intel Core I7-1068ng7 Firmware, Intel Core I7-10700 Firmware, Intel Core I7-10700e Firmware, Intel Core I7-10700f Firmware, Intel Core I7-10700k Firmware, Intel Core I7-10700kf Firmware, Intel Core I7-10700t Firmware, Intel Core I7-10700te Firmware, Intel Core I7-10710u Firmware, Intel Core I7-10750h Firmware, Intel Core I7-10810u Firmware, Intel Core I7-10850h Firmware, Intel Core I7-10870h Firmware, Intel Core I7-10875h Firmware, Intel Core I7-8086k Firmware and 30 more.

## How do I fix CVE-2020-24457?

No fix has been published for CVE-2020-24457 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-24457 being exploited?

There is no known exploitation of CVE-2020-24457 in the wild and no public exploit code.

## Other vulnerabilities in Intel BIOS

- [CVE-2019-0123](https://insights.sbomify.com/CVE-2019-0123/): Privilege escalation in 2019.2 IPU – Intel(R) SGX and TXT (high 7.8)
- [CVE-2019-0124](https://insights.sbomify.com/CVE-2019-0124/): Privilege escalation in 2019.2 IPU – Intel(R) SGX and TXT (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-24457 and fix it if it is affected.

What it is: CVE-2020-24457 is a high-severity vulnerability in Intel BIOS, published on 14 Sep 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-2020-24457 in the wild and no public exploit code.

Affected product: Intel 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-2020-24457/ (Markdown: https://insights.sbomify.com/CVE-2020-24457/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-24457
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-24457
- OSV: https://osv.dev/vulnerability/CVE-2020-24457

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-24457/
Summaries are generated and may contain mistakes; the official description above is the record.