# CVE-2023-20596: Privilege escalation in AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt"

> An attacker with a compromised SMI handler can exploit improper input validation in the SMM Supervisor to gain Ring0 access and execute arbitrary code.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Nov 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-r2mq-3mfq-2p2w

## What is CVE-2023-20596?

CVE-2023-20596 is a critical vulnerability in AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt", published on 14 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper input validation in the SMM Supervisor may allow an attacker with a compromised SMI handler to gain Ring0 access potentially leading to arbitrary code execution.

## Which versions are affected by CVE-2023-20596?

It affects 64 products.


Products: Amd Ryzen 3 5125c Firmware, Amd Ryzen 3 5300g Firmware, Amd Ryzen 3 5300ge Firmware, Amd Ryzen 3 5400u Firmware, Amd Ryzen 3 5425u Firmware, Amd Ryzen 3 7335u Firmware, Amd Ryzen 3 7440u Firmware, Amd Ryzen 5 5500h Firmware, Amd Ryzen 5 5560u Firmware, Amd Ryzen 5 5600g Firmware, Amd Ryzen 5 5600ge Firmware, Amd Ryzen 5 5600h Firmware, Amd Ryzen 5 5600hs Firmware, Amd Ryzen 5 5600u Firmware, Amd Ryzen 5 5625u Firmware, Amd Ryzen 5 6600h Firmware, Amd Ryzen 5 6600hs Firmware, Amd Ryzen 5 6600u Firmware, Amd Ryzen 5 7500f Firmware, Amd Ryzen 5 7535hs Firmware and 44 more.

## How do I fix CVE-2023-20596?

No fix has been published for CVE-2023-20596 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-20596 being exploited?

There is no known exploitation of CVE-2023-20596 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-20596 and fix it if it is affected.

What it is: CVE-2023-20596 is a critical vulnerability in AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt", published on 14 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-20596 in the wild and no public exploit code.

Affected product: AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt". 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-2023-20596/ (Markdown: https://insights.sbomify.com/CVE-2023-20596/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-20596
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-20596
- OSV: https://osv.dev/vulnerability/CVE-2023-20596

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-20596/
Summaries are generated and may contain mistakes; the official description above is the record.