# CVE-2009-3675: Denial of service in n/a

> Remote authenticated users can cause a denial of service via CPU exhaustion in LSASS by sending malformed ISAKMP requests over IPsec.

- **Severity:** Medium 6.8 (`AV:N/AC:L/Au:S/C:N/I:N/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Dec 2009
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-3v2j-hm2p-q5qg

## What is CVE-2009-3675?

CVE-2009-3675 is a medium-severity denial of service vulnerability in Microsoft Windows 2000, published on 9 Dec 2009. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

LSASS.exe in the Local Security Authority Subsystem Service (LSASS) in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2 allows remote authenticated users to cause a denial of service (CPU consumption) via a malformed ISAKMP request over IPsec, aka "Local Security Authority Subsystem Service Resource Exhaustion Vulnerability."

Weakness: CWE-399

## Which versions are affected by CVE-2009-3675?

It affects 3 products.


Products: Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows Xp.

## How do I fix CVE-2009-3675?

No fix has been published for CVE-2009-3675 yet. Limit exposure of the affected software until one is available.

## Is CVE-2009-3675 being exploited?

There is no known exploitation of CVE-2009-3675 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Windows 2000

- [CVE-2008-4250](https://insights.sbomify.com/CVE-2008-4250/): Microsoft Windows Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2010-0232](https://insights.sbomify.com/CVE-2010-0232/): Microsoft Windows Kernel Exception Handler (high 7.8, exploited in the wild)
- [CVE-2009-1123](https://insights.sbomify.com/CVE-2009-1123/): Microsoft Windows Improper Input Validation (high 7.8, exploited in the wild)
- [CVE-2002-0367](https://insights.sbomify.com/CVE-2002-0367/): Microsoft Windows Privilege Escalation (high 7.8, exploited in the wild)
- [CVE-2010-0269](https://insights.sbomify.com/CVE-2010-0269/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-3675 and fix it if it is affected.

What it is: CVE-2009-3675 is a medium-severity denial of service vulnerability in Microsoft Windows 2000, published on 9 Dec 2009. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2009-3675 in the wild and no public exploit code.

Affected product: Microsoft Windows 2000. 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-2009-3675/ (Markdown: https://insights.sbomify.com/CVE-2009-3675/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-3675
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-3675
- OSV: https://osv.dev/vulnerability/CVE-2009-3675

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-3675/
Summaries are generated and may contain mistakes; the official description above is the record.