# CVE-2024-36343: Memory corruption in AMD EPYC™ 4004

> A privileged attacker can exploit improper input validation in AMD SMM to perform out-of-bounds memory access, compromising confidentiality and integrity.

- **Severity:** Medium 4.6 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA: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:** 19 May 2026
- **Updated:** 20 May 2026
- **Also known as:** GHSA-qjgc-hx5r-r632

## What is CVE-2024-36343?

CVE-2024-36343 is a medium-severity memory corruption vulnerability in AMD EPYC™ 4004, published on 19 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper input validation in the System Management Mode (SMM) communications buffer could allow a privileged attacker to perform an out of bounds read or write to a limited section of the Top of Memory Segment (TSEG) memory region, potentially resulting in loss of confidentiality or integrity.

Weakness: CWE-124 (Buffer Underwrite)

## Which versions are affected by CVE-2024-36343?


## How do I fix CVE-2024-36343?

No fix has been published for CVE-2024-36343 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-36343 being exploited?

There is no known exploitation of CVE-2024-36343 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-36343 and fix it if it is affected.

What it is: CVE-2024-36343 is a medium-severity memory corruption vulnerability in AMD EPYC™ 4004, published on 19 May 2026. 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-2024-36343 in the wild and no public exploit code.

Affected product: AMD EPYC™ 4004. 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-2024-36343/ (Markdown: https://insights.sbomify.com/CVE-2024-36343/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-36343
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-36343
- OSV: https://osv.dev/vulnerability/CVE-2024-36343

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-36343/
Summaries are generated and may contain mistakes; the official description above is the record.