# CVE-2007-1321: Integer overflow in n/a

> Local attackers can exploit an integer signedness error in the QEMU NE2000 emulator to trigger a heap overflow, potentially executing arbitrary code or escalating privileges.

- **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:** Yes
- **Published:** 30 Oct 2007
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2007-1321, GHSA-793p-rv2q-qv42

## What is CVE-2007-1321?

CVE-2007-1321 is a high-severity vulnerability in Debian Debian Linux, published on 30 Oct 2007. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Integer signedness error in the NE2000 emulator in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to trigger a heap-based buffer overflow via certain register values that bypass sanity checks, aka QEMU NE2000 "receive" integer signedness error. NOTE: this identifier was inadvertently used by some sources to cover multiple issues that were labeled "NE2000 network driver and the socket code," but separate identifiers have been created for the individual vulnerabilities since there are sometimes different fixes; see CVE-2007-5729 and CVE-2007-5730.

## Which versions are affected by CVE-2007-1321?

It affects 4 products.


Products: Debian Debian Linux, Fedoraproject Fedora, Fedoraproject Fedora Core, Qemu Qemu.

## How do I fix CVE-2007-1321?

Apply the vendor's patch.

## Is CVE-2007-1321 being exploited?

There is no known exploitation of CVE-2007-1321 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-1321 and fix it if it is affected.

What it is: CVE-2007-1321 is a high-severity vulnerability in Debian Debian Linux, published on 30 Oct 2007. 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-2007-1321 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2007-1321/ (Markdown: https://insights.sbomify.com/CVE-2007-1321/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-1321
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-1321
- OSV: https://osv.dev/vulnerability/CVE-2007-1321

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-1321/
Summaries are generated and may contain mistakes; the official description above is the record.