# CVE-2023-1047: TechPowerUp RealTemp WinRing0x64.sys initialization

> Local attackers can exploit improper initialization in the WinRing0x64.sys driver to escalate privileges on systems running TechPowerUp RealTemp.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **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:** 26 Feb 2023
- **Updated:** 22 Nov 2024
- **Also known as:** GHSA-mf2r-6mfc-rr4p

## What is CVE-2023-1047?

CVE-2023-1047 is a medium-severity vulnerability in TechPowerUp RealTemp, published on 26 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability classified as critical was found in TechPowerUp RealTemp 3.7.0.0. This vulnerability affects unknown code in the library WinRing0x64.sys. The manipulation leads to improper initialization. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. VDB-221806 is the identifier assigned to this vulnerability.

Weakness: CWE-665 (Improper Initialization)

## Which versions are affected by CVE-2023-1047?

It affects 1 product.


Products: Techpowerup Realtemp.

## How do I fix CVE-2023-1047?

No fix has been published for CVE-2023-1047 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-1047 being exploited?

There is no known exploitation of CVE-2023-1047 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1047 and fix it if it is affected.

What it is: CVE-2023-1047 is a medium-severity vulnerability in TechPowerUp RealTemp, published on 26 Feb 2023. 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-2023-1047 in the wild and no public exploit code.

Affected product: TechPowerUp RealTemp. 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-2023-1047/ (Markdown: https://insights.sbomify.com/CVE-2023-1047/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1047
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1047
- OSV: https://osv.dev/vulnerability/CVE-2023-1047

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1047/
Summaries are generated and may contain mistakes; the official description above is the record.