# CVE-2025-61155: Missing authorization in n/a

> A local attacker can terminate arbitrary processes, including security services, via the GameDriverX64.sys kernel driver due to missing access validation in IOCTL handlers.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:** 28 Oct 2025
- **Updated:** 9 Dec 2025
- **Also known as:** GHSA-9qfv-m6w2-fhch

## What is CVE-2025-61155?

CVE-2025-61155 is a medium-severity missing authorization vulnerability in n/a, published on 28 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The GameDriverX64.sys kernel-mode anti-cheat driver (v7.23.4.7 and earlier) contains an access control vulnerability in one of its IOCTL handlers. A user-mode process can open a handle to the driver device and send specially crafted IOCTL requests. These requests are executed in kernel-mode context without proper authentication or access validation, allowing the attacker to terminate arbitrary processes, including critical system and security services, without requiring administrative privileges.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2025-61155?


## How do I fix CVE-2025-61155?

No fix has been published for CVE-2025-61155 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-61155 being exploited?

There is no known exploitation of CVE-2025-61155 in the wild and no public exploit code.

Public exploit code:

- Official public advisory for CVE-2025-61155 (github_poc): https://github.com/pollotherunner/CVE-2025-61155
- CVE-2025-61155 — arbitrary process termination in GameDriverX64.sys (Tower of Fantasy anti-cheat). Original IDA Pro teardown, PoC, YARA, IOCs, mitigation. (github_poc): https://github.com/sf0rzin/CVE-2025-61155

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-61155 and fix it if it is affected.

What it is: CVE-2025-61155 is a medium-severity missing authorization vulnerability in n/a, published on 28 Oct 2025. 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-2025-61155 in the wild and no public exploit code.

Affected product: n/a. 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-2025-61155/ (Markdown: https://insights.sbomify.com/CVE-2025-61155/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-61155
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-61155
- OSV: https://osv.dev/vulnerability/CVE-2025-61155

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-61155/
Summaries are generated and may contain mistakes; the official description above is the record.