# CVE-2011-1248: Memory corruption in n/a

> Remote attackers can execute arbitrary code or cause denial of service via crafted packets exploiting memory corruption in the WINS 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:** Not needed
- **Fix available:** No
- **Published:** 13 May 2011
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-7645-8gqc-2v87

## What is CVE-2011-1248?

CVE-2011-1248 is a critical memory corruption vulnerability in Microsoft Windows Server 2003, published on 13 May 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

WINS in Microsoft Windows Server 2003 SP2 and Server 2008 Gold, SP2, R2, and R2 SP1 does not properly handle socket send exceptions, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets, related to unintended stack-frame values and buffer passing, aka "WINS Service Failed Response Vulnerability."

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2011-1248?

It affects 2 products.


Products: Microsoft Windows Server 2003, Microsoft Windows Server 2008.

## How do I fix CVE-2011-1248?

No fix has been published for CVE-2011-1248 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-1248 being exploited?

There is no known exploitation of CVE-2011-1248 in the wild and no public exploit code.

Public exploit code:

- Microsoft WINS Service 5.2.3790.4520 - Memory Corruption (MS11-035) (exploitdb)

## Other vulnerabilities in Microsoft Windows Server 2003

- [CVE-2011-2005](https://insights.sbomify.com/CVE-2011-2005/): Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation (high 7.8, exploited in the wild)
- [CVE-2013-3863](https://insights.sbomify.com/CVE-2013-3863/): Memory corruption in n/a (critical 9.3)
- [CVE-2013-3181](https://insights.sbomify.com/CVE-2013-3181/): Memory corruption in n/a (critical 9.3)
- [CVE-2013-0077](https://insights.sbomify.com/CVE-2013-0077/): Code injection in n/a (critical 9.3)
- [CVE-2012-0009](https://insights.sbomify.com/CVE-2012-0009/): Path traversal in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-1248 and fix it if it is affected.

What it is: CVE-2011-1248 is a critical memory corruption vulnerability in Microsoft Windows Server 2003, published on 13 May 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2011-1248 in the wild and no public exploit code.

Affected product: Microsoft Windows Server 2003. 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-2011-1248/ (Markdown: https://insights.sbomify.com/CVE-2011-1248/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-1248
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-1248
- OSV: https://osv.dev/vulnerability/CVE-2011-1248

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-1248/
Summaries are generated and may contain mistakes; the official description above is the record.