# CVE-2016-3352: Information disclosure in n/a

> Remote attackers can brute-force NTLM password hashes to determine passwords due to improper checks in Microsoft Windows NTLM SSO requests.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **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:** 14 Sep 2016
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-j53r-gx3g-g877

## What is CVE-2016-3352?

CVE-2016-3352 is a high-severity vulnerability in Microsoft Windows 10, published on 14 Sep 2016. 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

Microsoft Windows 8.1, Windows RT 8.1, and Windows 10 Gold, 1511, and 1607 do not properly check NTLM SSO requests for MSA logins, which makes it easier for remote attackers to determine passwords via a brute-force attack on NTLM password hashes, aka "Microsoft Information Disclosure Vulnerability."

Weakness: CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2016-3352?

It affects 3 products.


Products: Microsoft Windows 10, Microsoft Windows 8.1, Microsoft Windows Rt 8.1.

## How do I fix CVE-2016-3352?

No fix has been published for CVE-2016-3352 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-3352 being exploited?

There is no known exploitation of CVE-2016-3352 in the wild and no public exploit code.

## 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-2016-3352 and fix it if it is affected.

What it is: CVE-2016-3352 is a high-severity vulnerability in Microsoft Windows 10, published on 14 Sep 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2016-3352 in the wild and no public exploit code.

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-2016-3352/ (Markdown: https://insights.sbomify.com/CVE-2016-3352/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-3352
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-3352
- OSV: https://osv.dev/vulnerability/CVE-2016-3352

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-3352/
Summaries are generated and may contain mistakes; the official description above is the record.