# CVE-2019-1364: Privilege escalation in Windows

> Attackers can gain elevated privileges on Windows systems due to improper memory handling in the kernel-mode driver.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Oct 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-637p-94rv-v24j

## What is CVE-2019-1364?

CVE-2019-1364 is a high-severity vulnerability in Microsoft Windows 7, published on 10 Oct 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1362.

## Which versions are affected by CVE-2019-1364?

It affects 2 products.


Products: Microsoft Windows 7, Microsoft Windows Server 2008.

## How do I fix CVE-2019-1364?

No fix has been published for CVE-2019-1364 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1364 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-1364 exists.

Public exploit code:

- Microsoft Windows Kernel - win32k.sys TTF Font Processing Pool Corruption in win32k!ulClearTypeFilter (exploitdb)

## Other vulnerabilities in Microsoft Windows 7

- [CVE-2015-1635](https://insights.sbomify.com/CVE-2015-1635/): Microsoft HTTP.sys Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2015-2360](https://insights.sbomify.com/CVE-2015-2360/): Microsoft Win32k Privilege Escalation (high 8.8, exploited in the wild)
- [CVE-2014-6324](https://insights.sbomify.com/CVE-2014-6324/): Microsoft Kerberos Key Distribution Center (KDC) Privilege Escalation (high 8.8, exploited in the wild)
- [CVE-2014-6332](https://insights.sbomify.com/CVE-2014-6332/): Microsoft Windows Object Linking & Embedding (OLE) Automation Array Remote Code Execution (high 8.8, exploited in the wild)
- [CVE-2014-4148](https://insights.sbomify.com/CVE-2014-4148/): Microsoft Windows Remote Code Execution (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1364 and fix it if it is affected.

What it is: CVE-2019-1364 is a high-severity vulnerability in Microsoft Windows 7, published on 10 Oct 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-1364 exists.

Affected product: Microsoft Windows 7. 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-2019-1364/ (Markdown: https://insights.sbomify.com/CVE-2019-1364/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1364
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1364
- OSV: https://osv.dev/vulnerability/CVE-2019-1364

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-1364/
Summaries are generated and may contain mistakes; the official description above is the record.