# CVE-2009-1331: Integer overflow in n/a

> Remote attackers can crash Windows Media Player by tricking users into opening a malicious MIDI file, causing a denial of service.

- **Severity:** Critical 9.3 (`AV:N/AC:M/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 17 Apr 2009
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-78w2-qm8v-7wr9

## What is CVE-2009-1331?

CVE-2009-1331 is a critical vulnerability in Microsoft Windows Media Player, published on 17 Apr 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Integer overflow in Microsoft Windows Media Player (WMP) 11.0.5721.5260 allows remote attackers to cause a denial of service (application crash) via a crafted .mid file, as demonstrated by crash.mid.

Weakness: CWE-189

## Which versions are affected by CVE-2009-1331?

It affects 1 product.


Products: Microsoft Windows Media Player.

## How do I fix CVE-2009-1331?

No fix has been published for CVE-2009-1331 yet. Limit exposure of the affected software until one is available.

## Is CVE-2009-1331 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-1331 exists.

Public exploit code:

- Microsoft Windows Media Player - '.mid' Integer Overflow (PoC) (exploitdb)

## Other vulnerabilities in Microsoft Windows Media Player

- [CVE-2008-3010](https://insights.sbomify.com/CVE-2008-3010/): Information disclosure in n/a (critical 10.0)
- [CVE-2015-1728](https://insights.sbomify.com/CVE-2015-1728/): Code injection in n/a (critical 9.3)
- [CVE-2010-2745](https://insights.sbomify.com/CVE-2010-2745/): Memory corruption in n/a (critical 9.3)
- [CVE-2009-2527](https://insights.sbomify.com/CVE-2009-2527/): Memory corruption in n/a (critical 9.3)
- [CVE-2008-2253](https://insights.sbomify.com/CVE-2008-2253/): Code injection in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-1331 and fix it if it is affected.

What it is: CVE-2009-1331 is a critical vulnerability in Microsoft Windows Media Player, published on 17 Apr 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-1331 exists.

Affected product: Microsoft Windows Media Player. 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-2009-1331/ (Markdown: https://insights.sbomify.com/CVE-2009-1331/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-1331
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-1331
- OSV: https://osv.dev/vulnerability/CVE-2009-1331

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-1331/
Summaries are generated and may contain mistakes; the official description above is the record.