# CVE-2016-7237: Denial of service in n/a

> Remote authenticated users can cause a system hang in Windows LSASS via a crafted request, requiring OS patches.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **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:** 10 Nov 2016
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-96wx-g729-q36v

## What is CVE-2016-7237?

CVE-2016-7237 is a medium-severity denial of service vulnerability in Microsoft Windows 10, published on 10 Nov 2016. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Local Security Authority Subsystem Service (LSASS) in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, and 1607, and Windows Server 2016 allows remote authenticated users to cause a denial of service (system hang) via a crafted request, aka "Local Security Authority Subsystem Service Denial of Service Vulnerability."

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2016-7237?

It affects 8 products.


Products: Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Vista.

## How do I fix CVE-2016-7237?

No fix has been published for CVE-2016-7237 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-7237 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-7237 exists.

Public exploit code:

- Microsoft Windows - LSASS SMB NTLM Exchange Null-Pointer Dereference (MS16-137) (exploitdb)

## Other vulnerabilities in Microsoft Windows 10

- [CVE-2015-2426](https://insights.sbomify.com/CVE-2015-2426/): Microsoft Windows Adobe Type Manager Library Remote Code Execution (high 8.8, exploited in the wild)
- [CVE-2015-1769](https://insights.sbomify.com/CVE-2015-1769/): Microsoft Windows Mount Manager Privilege Escalation (medium 6.6, exploited in the wild)
- [CVE-2020-1467](https://insights.sbomify.com/CVE-2020-1467/): Windows Hard Link Elevation of Privilege Vulnerability (critical 10.0)
- [CVE-2021-26424](https://insights.sbomify.com/CVE-2021-26424/): Windows TCP/IP Remote Code Execution Vulnerability (critical 9.9)
- [CVE-2021-28476](https://insights.sbomify.com/CVE-2021-28476/): Windows Hyper-V Remote Code Execution Vulnerability (critical 9.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-7237 and fix it if it is affected.

What it is: CVE-2016-7237 is a medium-severity denial of service vulnerability in Microsoft Windows 10, published on 10 Nov 2016. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-7237 exists.

Affected product: Microsoft Windows 10. 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-2016-7237/ (Markdown: https://insights.sbomify.com/CVE-2016-7237/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-7237
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-7237
- OSV: https://osv.dev/vulnerability/CVE-2016-7237

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-7237/
Summaries are generated and may contain mistakes; the official description above is the record.