# CVE-2023-20599: Security feature bypass in AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics

> Privileged attackers can bypass register access controls to compromise cryptographic keys, risking data integrity and confidentiality on AMD processors.

- **Severity:** High 7.9 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jun 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-7rc6-r844-3mww

## What is CVE-2023-20599?

CVE-2023-20599 is a high-severity vulnerability in AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics, published on 10 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper register access control in ASP may allow a privileged attacker to perform unauthorized access to ASP’s Crypto Co-Processor (CCP) registers from x86 resulting in potential loss of control of cryptographic key pointer/index leading to loss of integrity or confidentiality.

Weakness: CWE-1262 (Improper Access Control for Register Interface)

## Which versions are affected by CVE-2023-20599?


## How do I fix CVE-2023-20599?

No fix has been published for CVE-2023-20599 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-20599 being exploited?

There is no known exploitation of CVE-2023-20599 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-20599 and fix it if it is affected.

What it is: CVE-2023-20599 is a high-severity vulnerability in AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics, published on 10 Jun 2025. 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-2023-20599 in the wild and no public exploit code.

Affected product: AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics. 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-2023-20599/ (Markdown: https://insights.sbomify.com/CVE-2023-20599/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-20599
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-20599
- OSV: https://osv.dev/vulnerability/CVE-2023-20599

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-20599/
Summaries are generated and may contain mistakes; the official description above is the record.