# CVE-2007-2455: Denial of service in n/a

> Local attackers can cause a denial of service in Parallels virtual machines by executing specific invalid or malformed CPU instructions.

- **Severity:** Medium 6.1 (`AV:A/AC:L/Au:N/C:N/I:N/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:** 2 May 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-2q5q-67x8-5hg2

## What is CVE-2007-2455?

CVE-2007-2455 is a medium-severity denial of service vulnerability in Parallels Parallels Desktop, published on 2 May 2007. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Parallels allows local users to cause a denial of service (virtual machine abort) via (1) certain INT instructions, as demonstrated by INT 0xAA; (2) an IRET instruction when an invalid address is at the top of the stack; (3) a malformed MOVNTI instruction, as demonstrated by using a register as a destination; or a write operation to (4) SEGR6 or (5) SEGR7.

## Which versions are affected by CVE-2007-2455?

It affects 1 product.


Products: Parallels Parallels Desktop.

## How do I fix CVE-2007-2455?

No fix has been published for CVE-2007-2455 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-2455 being exploited?

There is no known exploitation of CVE-2007-2455 in the wild and no public exploit code.

## Other vulnerabilities in Parallels Parallels Desktop

- [CVE-2025-31359](https://insights.sbomify.com/CVE-2025-31359/): Path traversal in Parallels Desktop for Mac (high 8.8)
- [CVE-2021-34864](https://insights.sbomify.com/CVE-2021-34864/): Privilege escalation in Desktop (high 8.8)
- [CVE-2021-31420](https://insights.sbomify.com/CVE-2021-31420/): Memory corruption in Desktop (high 8.8)
- [CVE-2021-31424](https://insights.sbomify.com/CVE-2021-31424/): Memory corruption in Desktop (high 8.8)
- [CVE-2021-31425](https://insights.sbomify.com/CVE-2021-31425/): Integer overflow in Desktop (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-2455 and fix it if it is affected.

What it is: CVE-2007-2455 is a medium-severity denial of service vulnerability in Parallels Parallels Desktop, published on 2 May 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-2007-2455 in the wild and no public exploit code.

Affected product: Parallels Parallels Desktop. 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-2007-2455/ (Markdown: https://insights.sbomify.com/CVE-2007-2455/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-2455
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-2455
- OSV: https://osv.dev/vulnerability/CVE-2007-2455

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-2455/
Summaries are generated and may contain mistakes; the official description above is the record.