# CVE-2024-23441: Vba32 Antivirus v3.36.0 - Denial of Service (DoS)

> Attackers can cause a denial of service in Vba32 Antivirus by triggering a null pointer dereference in the kernel driver via a specific IOCTL code.

- **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:** 29 Jan 2024
- **Updated:** 20 Apr 2026
- **Also known as:** GHSA-v7v5-mxj3-9qmp

## What is CVE-2024-23441?

CVE-2024-23441 is a medium-severity vulnerability in VirusBlokAda Vba32 Antivirus, published on 29 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Vba32 Antivirus v3.36.0 is vulnerable to a Denial of Service vulnerability by triggering the 0x2220A7 IOCTL code of the Vba32m64.sys driver.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2024-23441?

It affects 1 product.


Products: Anti-Virus Vba32.

## How do I fix CVE-2024-23441?

No fix has been published for CVE-2024-23441 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-23441 being exploited?

There is no known exploitation of CVE-2024-23441 in the wild and no public exploit code.

## Other vulnerabilities in VirusBlokAda Vba32 Antivirus

- [CVE-2024-23439](https://insights.sbomify.com/CVE-2024-23439/): Vba32 Antivirus v3.36.0 - Arbitrary Memory Read (high 7.1)
- [CVE-2024-23440](https://insights.sbomify.com/CVE-2024-23440/): Vba32 Antivirus v3.36.0 - Arbitrary Memory Read (high 7.1)
- [CVE-2012-1461](https://insights.sbomify.com/CVE-2012-1461/): Security feature bypass in n/a (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-23441 and fix it if it is affected.

What it is: CVE-2024-23441 is a medium-severity vulnerability in VirusBlokAda Vba32 Antivirus, published on 29 Jan 2024. 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-2024-23441 in the wild and no public exploit code.

Affected product: VirusBlokAda Vba32 Antivirus. 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-2024-23441/ (Markdown: https://insights.sbomify.com/CVE-2024-23441/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-23441
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-23441
- OSV: https://osv.dev/vulnerability/CVE-2024-23441

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-23441/
Summaries are generated and may contain mistakes; the official description above is the record.