# CVE-2024-12661: IObit Advanced SystemCare Utimate IOCTL AscRegistryFilter.sys 0x8001E024 null pointer dereference

> A local attacker can cause a denial of service via a null pointer dereference in the IObit Advanced SystemCare Ultimate kernel driver.

- **Severity:** Medium 6.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/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:** 16 Dec 2024
- **Updated:** 16 Dec 2024
- **Also known as:** GHSA-qwvh-983v-7jrj

## What is CVE-2024-12661?

CVE-2024-12661 is a medium-severity vulnerability in IObit Advanced SystemCare Utimate, published on 16 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability was found in IObit Advanced SystemCare Utimate up to 17.0.0. It has been rated as problematic. Affected by this issue is the function 0x8001E024 in the library AscRegistryFilter.sys of the component IOCTL Handler. The manipulation leads to null pointer dereference. The attack needs to be approached locally. 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-476 (NULL Pointer Dereference), CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2024-12661?

It affects 1 product.


Products: Iobit Advanced Systemcare Ultimate.

## How do I fix CVE-2024-12661?

No fix has been published for CVE-2024-12661 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-12661 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-12661 exists.

## Other vulnerabilities in IObit Advanced SystemCare Utimate

- [CVE-2021-21786](https://insights.sbomify.com/CVE-2021-21786/): Privilege escalation in Iobit (high 8.8)
- [CVE-2021-21787](https://insights.sbomify.com/CVE-2021-21787/): Privilege escalation in Iobit (high 8.8)
- [CVE-2021-21788](https://insights.sbomify.com/CVE-2021-21788/): Privilege escalation in Iobit (high 8.8)
- [CVE-2021-21789](https://insights.sbomify.com/CVE-2021-21789/): Privilege escalation in Iobit (high 8.8)
- [CVE-2018-9040](https://insights.sbomify.com/CVE-2018-9040/): Denial of service in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-12661 and fix it if it is affected.

What it is: CVE-2024-12661 is a medium-severity vulnerability in IObit Advanced SystemCare Utimate, published on 16 Dec 2024. 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-2024-12661 exists.

Affected product: IObit Advanced SystemCare Utimate. 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-2024-12661/ (Markdown: https://insights.sbomify.com/CVE-2024-12661/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-12661
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-12661
- OSV: https://osv.dev/vulnerability/CVE-2024-12661

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-12661/
Summaries are generated and may contain mistakes; the official description above is the record.