# CVE-2018-6974: Memory corruption in ESXi

> An out-of-bounds read in the SVGA device allows a guest VM to execute arbitrary code on the host system.

- **Severity:** High 8.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **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:** 16 Oct 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-5vq3-72qx-fm2c

## What is CVE-2018-6974?

CVE-2018-6974 is a high-severity memory corruption vulnerability in Vmware Esxi, published on 16 Oct 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

VMware ESXi (6.7 before ESXi670-201810101-SG, 6.5 before ESXi650-201808401-BG, and 6.0 before ESXi600-201808401-BG), Workstation (14.x before 14.1.3) and Fusion (10.x before 10.1.3) contain an out-of-bounds read vulnerability in SVGA device. This issue may allow a guest to execute code on the host.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2018-6974?

It affects 3 products.


Products: Vmware Esxi, Vmware Fusion, Vmware Workstation.

## How do I fix CVE-2018-6974?

No fix has been published for CVE-2018-6974 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-6974 being exploited?

There is no known exploitation of CVE-2018-6974 in the wild and no public exploit code.

## Other vulnerabilities in Vmware Esxi

- [CVE-2026-41709](https://insights.sbomify.com/CVE-2026-41709/): Broadcom VMWare ESX Insufficient Logging (low 2.7, exploited in the wild)
- [CVE-2019-5521](https://insights.sbomify.com/CVE-2019-5521/): Information disclosure in VMware ESXi (critical 9.6)
- [CVE-2024-22252](https://insights.sbomify.com/CVE-2024-22252/): Use-after-free vulnerability (critical 9.3)
- [CVE-2020-3955](https://insights.sbomify.com/CVE-2020-3955/): Cross-site scripting in ESXi (critical 9.3)
- [CVE-2010-4573](https://insights.sbomify.com/CVE-2010-4573/): Auth bypass in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-6974 and fix it if it is affected.

What it is: CVE-2018-6974 is a high-severity memory corruption vulnerability in Vmware Esxi, published on 16 Oct 2018. 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-2018-6974 in the wild and no public exploit code.

Affected product: Vmware Esxi. 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-2018-6974/ (Markdown: https://insights.sbomify.com/CVE-2018-6974/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-6974
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-6974
- OSV: https://osv.dev/vulnerability/CVE-2018-6974

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-6974/
Summaries are generated and may contain mistakes; the official description above is the record.