# CVE-2025-5324: TechPowerUp GPU-Z 0x8000645C IOCTL GPU-Z.sys sub_140001880 memory leak

> A local attacker can trigger a memory leak in GPU-Z via a specific IOCTL, potentially causing denial of service.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **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:** 29 May 2025
- **Updated:** 29 May 2025
- **Also known as:** GHSA-65p9-x3qj-q764

## What is CVE-2025-5324?

CVE-2025-5324 is a medium-severity denial of service vulnerability in TechPowerUp GPU-Z, published on 29 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability, which was classified as problematic, was found in TechPowerUp GPU-Z 2.23.0. Affected is the function sub_140001880 in the library GPU-Z.sys of the component 0x8000645C IOCTL Handler. The manipulation leads to memory leak. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-404 (Improper Resource Shutdown or Release), CWE-401 (Missing Release of Memory after Effective Lifetime)

## Which versions are affected by CVE-2025-5324?


## How do I fix CVE-2025-5324?

No fix has been published for CVE-2025-5324 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-5324 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5324 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-5324 and fix it if it is affected.

What it is: CVE-2025-5324 is a medium-severity denial of service vulnerability in TechPowerUp GPU-Z, published on 29 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5324 exists.

Affected product: TechPowerUp GPU-Z. 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-2025-5324/ (Markdown: https://insights.sbomify.com/CVE-2025-5324/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-5324
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-5324
- OSV: https://osv.dev/vulnerability/CVE-2025-5324

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-5324/
Summaries are generated and may contain mistakes; the official description above is the record.