# CVE-2023-6200: Kernel: icmpv6 router advertisement packets, aka linux tcp/ip remote code execution vulnerability

> An unauthenticated attacker on an adjacent network can trigger a race condition in the Linux kernel via ICMPv6 packets to achieve arbitrary code execution.

- **Severity:** High 7.5 (`CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 28 Jan 2024
- **Updated:** 5 Jun 2025
- **Also known as:** AZL-34029, AZL-34866, DEBIAN-CVE-2023-6200, GHSA-ghww-f45r-4r4w, UBUNTU-CVE-2023-6200

## What is CVE-2023-6200?

CVE-2023-6200 is a high-severity vulnerability in Linux kernel, published on 28 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A race condition was found in the Linux Kernel. Under certain conditions, an unauthenticated attacker from an adjacent network could send an ICMPv6 router advertisement packet, causing arbitrary code execution.

Weakness: CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2023-6200?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2023-6200?

Apply the vendor's patch.

## Is CVE-2023-6200 being exploited?

There is no known exploitation of CVE-2023-6200 in the wild and no public exploit code.

## Other vulnerabilities in Linux kernel

- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6200 and fix it if it is affected.

What it is: CVE-2023-6200 is a high-severity vulnerability in Linux kernel, published on 28 Jan 2024. 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-2023-6200 in the wild and no public exploit code.

Affected product: Linux kernel. 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-2023-6200/ (Markdown: https://insights.sbomify.com/CVE-2023-6200/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6200
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6200
- OSV: https://osv.dev/vulnerability/CVE-2023-6200

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6200/
Summaries are generated and may contain mistakes; the official description above is the record.