# CVE-2023-25756: Memory corruption in Intel(R) Processors

> An authenticated attacker with adjacent access can exploit an out-of-bounds read in Intel BIOS firmware to escalate privileges.

- **Severity:** Medium 4.6 (`CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L`)
- **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:** 14 Nov 2023
- **Updated:** 13 Feb 2025
- **Also known as:** GHSA-pgg7-g5f4-6c8v

## What is CVE-2023-25756?

CVE-2023-25756 is a medium-severity memory corruption vulnerability in Intel(R) Processors, published on 14 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Out-of-bounds read in the BIOS firmware for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege via adjacent access.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2023-25756?

It affects 629 products.


Products: Intel Atom X6200fe Firmware, Intel Atom X6211e Firmware, Intel Atom X6212re Firmware, Intel Atom X6413e Firmware, Intel Atom X6414re Firmware, Intel Atom X6425e Firmware, Intel Atom X6425re Firmware, Intel Atom X6427fe Firmware, Intel Celeron 1000m Firmware, Intel Celeron 1005m Firmware, Intel Celeron 1007u Firmware, Intel Celeron 1017u Firmware, Intel Celeron 1019y Firmware, Intel Celeron 1020e Firmware, Intel Celeron 1020m Firmware, Intel Celeron 1037u Firmware, Intel Celeron 1047ue Firmware, Intel Celeron 2000e Firmware, Intel Celeron 2002e Firmware, Intel Celeron 2950m Firmware and 609 more.

## How do I fix CVE-2023-25756?

No fix has been published for CVE-2023-25756 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-25756 being exploited?

There is no known exploitation of CVE-2023-25756 in the wild and no public exploit code.

## Other vulnerabilities in Intel(R) Processors

- [CVE-2022-44611](https://insights.sbomify.com/CVE-2022-44611/): Privilege escalation in Intel(R) Processors (medium 6.9)
- [CVE-2023-22329](https://insights.sbomify.com/CVE-2023-22329/): Denial of service in Intel(R) Processors (low 2.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-25756 and fix it if it is affected.

What it is: CVE-2023-25756 is a medium-severity memory corruption vulnerability in Intel(R) Processors, published on 14 Nov 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-2023-25756 in the wild and no public exploit code.

Affected product: Intel(R) Processors. 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-2023-25756/ (Markdown: https://insights.sbomify.com/CVE-2023-25756/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-25756
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-25756
- OSV: https://osv.dev/vulnerability/CVE-2023-25756

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-25756/
Summaries are generated and may contain mistakes; the official description above is the record.