# CVE-2007-4648: Privilege escalation in n/a

> Local attackers can exploit weak driver permissions to trigger buffer overflows and gain elevated privileges on systems running Norman Virus Control.

- **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:** 31 Aug 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-r96j-qc97-7fj4

## What is CVE-2007-4648?

CVE-2007-4648 is a high-severity vulnerability in n/a, published on 31 Aug 2007. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The nvcoaft51 driver in Norman Virus Control (NVC) 5.82 uses weak permissions (unrestricted write access) for the NvcOa device, which allows local users to gain privileges by (1) triggering a buffer overflow in a kernel pool via a string argument to ioctl 0xBF67201C; or by (2) sending a crafted KEVENT structure through ioctl 0xBF672028 to overwrite arbitrary memory locations.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2007-4648?

It affects 1 product.


Products: Norman Norman Virus Control.

## How do I fix CVE-2007-4648?

No fix has been published for CVE-2007-4648 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-4648 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-4648 exists.

Public exploit code:

- Norman Virus Control - 'nvcoaft51.sys' ioctl BF672028 (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2007-3951](https://insights.sbomify.com/CVE-2007-3951/): Memory corruption in n/a (high 7.5)
- [CVE-2005-3378](https://insights.sbomify.com/CVE-2005-3378/): Security feature bypass in n/a (medium 5.1)
- [CVE-2007-3953](https://insights.sbomify.com/CVE-2007-3953/): Denial of service in n/a (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-4648 and fix it if it is affected.

What it is: CVE-2007-4648 is a high-severity vulnerability in n/a, published on 31 Aug 2007. 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-2007-4648 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-2007-4648/ (Markdown: https://insights.sbomify.com/CVE-2007-4648/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-4648
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-4648
- OSV: https://osv.dev/vulnerability/CVE-2007-4648

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-4648/
Summaries are generated and may contain mistakes; the official description above is the record.