# CVE-2023-20597: Information disclosure in AMD EPYC™ Embedded 7003

> A privileged local attacker can leak sensitive information due to improper variable initialization in AMD DXE drivers.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **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:** 20 Sep 2023
- **Updated:** 27 Jun 2025
- **Also known as:** GHSA-8prm-gh76-rq38

## What is CVE-2023-20597?

CVE-2023-20597 is a medium-severity vulnerability in AMD EPYC™ Embedded 7003, published on 20 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local access.

Weakness: CWE-665 (Improper Initialization), CWE-824 (Access of Uninitialized Pointer)

## Which versions are affected by CVE-2023-20597?

It affects 101 products.


Products: Amd Ryzen 3100 Firmware, Amd Ryzen 3300x Firmware, Amd Ryzen 3500 Firmware, Amd Ryzen 3500x Firmware, Amd Ryzen 3600 Firmware, Amd Ryzen 3600x Firmware, Amd Ryzen 3600xt Firmware, Amd Ryzen 3800x Firmware, Amd Ryzen 3800xt Firmware, Amd Ryzen 3900 Firmware, Amd Ryzen 3900x Firmware, Amd Ryzen 3900xt Firmware, Amd Ryzen 3945wx Firmware, Amd Ryzen 3950x Firmware, Amd Ryzen 3955wx Firmware, Amd Ryzen 3960x Firmware, Amd Ryzen 3970x Firmware, Amd Ryzen 3975wx Firmware, Amd Ryzen 3990x Firmware, Amd Ryzen 3995wx Firmware and 81 more.

## How do I fix CVE-2023-20597?

No fix has been published for CVE-2023-20597 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-20597 being exploited?

There is no known exploitation of CVE-2023-20597 in the wild and no public exploit code.

## Other vulnerabilities in AMD EPYC™ Embedded 7003

- [CVE-2021-46755](https://insights.sbomify.com/CVE-2021-46755/): Denial of service in 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT (high 7.5)
- [CVE-2021-46765](https://insights.sbomify.com/CVE-2021-46765/): Denial of service in Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir” (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-20597 and fix it if it is affected.

What it is: CVE-2023-20597 is a medium-severity vulnerability in AMD EPYC™ Embedded 7003, published on 20 Sep 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-2023-20597 in the wild and no public exploit code.

Affected product: AMD EPYC™ Embedded 7003. 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-2023-20597/ (Markdown: https://insights.sbomify.com/CVE-2023-20597/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-20597
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-20597
- OSV: https://osv.dev/vulnerability/CVE-2023-20597

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-20597/
Summaries are generated and may contain mistakes; the official description above is the record.