# CVE-2006-4926: Memory corruption in n/a

> Local attackers can execute arbitrary code with elevated privileges by exploiting a memory corruption vulnerability in Kaspersky antivirus device drivers.

- **Severity:** High 7.2 (`AV:L/AC:L/Au:N/C:C/I:C/A:C`)
- **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:** 20 Oct 2006
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-r9ww-rg22-c2wc

## What is CVE-2006-4926?

CVE-2006-4926 is a high-severity memory corruption vulnerability in n/a, published on 20 Oct 2006. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The NDIS-TDI Hooking Engine, as used in the (1) KLICK (KLICK.SYS) and (2) KLIN (KLIN.SYS) device drivers 2.0.0.281 for in Kaspersky Labs Anti-Virus 6.0.0.303 and other Anti-Virus and Internet Security products, allows local users to execute arbitrary code via crafted Irp structure with invalid addresses in the 0x80052110 IOCTL.

## Which versions are affected by CVE-2006-4926?

It affects 4 products.


Products: Kaspersky Lab Kaspersky Anti-Virus, Kaspersky Lab Kaspersky Anti-Virus Personal, Kaspersky Lab Kaspersky Anti-Virus Personal Pro, Kaspersky Lab Kaspersky Internet Security.

## How do I fix CVE-2006-4926?

No fix has been published for CVE-2006-4926 yet. Limit exposure of the affected software until one is available.

## Is CVE-2006-4926 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-4926 exists.

Public exploit code:

- Kaspersky Internet Security 6.0.0.303 - IOCTL KLICK Local Overflow / Local Privilege Escalation (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2007-0445](https://insights.sbomify.com/CVE-2007-0445/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-1112](https://insights.sbomify.com/CVE-2007-1112/): Path traversal in n/a (critical 10.0)
- [CVE-2005-3142](https://insights.sbomify.com/CVE-2005-3142/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-1879](https://insights.sbomify.com/CVE-2007-1879/): Information disclosure in n/a (critical 9.3)
- [CVE-2006-1091](https://insights.sbomify.com/CVE-2006-1091/): Denial of service in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2006-4926 and fix it if it is affected.

What it is: CVE-2006-4926 is a high-severity memory corruption vulnerability in n/a, published on 20 Oct 2006. 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-2006-4926 exists.

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-2006-4926/ (Markdown: https://insights.sbomify.com/CVE-2006-4926/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-4926
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-4926
- OSV: https://osv.dev/vulnerability/CVE-2006-4926

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-4926/
Summaries are generated and may contain mistakes; the official description above is the record.