# CVE-2019-1246: Memory corruption in Microsoft Office

> Remote code execution via improper memory handling in the Windows Jet Database Engine affects Windows and Office users.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/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:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Sep 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-5qqm-ghmq-h9vw

## What is CVE-2019-1246?

CVE-2019-1246 is a high-severity memory corruption vulnerability in Microsoft Office, published on 11 Sep 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory, aka 'Jet Database Engine Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1240, CVE-2019-1241, CVE-2019-1242, CVE-2019-1243, CVE-2019-1247, CVE-2019-1248, CVE-2019-1249, CVE-2019-1250.

## Which versions are affected by CVE-2019-1246?

It affects 10 products.


Products: Microsoft Office, Microsoft Office 365 Proplus, 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 Server 2019.

## How do I fix CVE-2019-1246?

No fix has been published for CVE-2019-1246 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1246 being exploited?

There is no known exploitation of CVE-2019-1246 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Office

- [CVE-2018-0798](https://insights.sbomify.com/CVE-2018-0798/): Microsoft Office Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2015-1770](https://insights.sbomify.com/CVE-2015-1770/): Microsoft Office Uninitialized Memory Use (high 8.8, exploited in the wild)
- [CVE-2006-2492](https://insights.sbomify.com/CVE-2006-2492/): Microsoft Word Malformed Object Pointer (high 8.8, exploited in the wild)
- [CVE-2018-0802](https://insights.sbomify.com/CVE-2018-0802/): Microsoft Office Memory Corruption (high 7.8, exploited in the wild)
- [CVE-2017-11882](https://insights.sbomify.com/CVE-2017-11882/): Microsoft Office Memory Corruption (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1246 and fix it if it is affected.

What it is: CVE-2019-1246 is a high-severity memory corruption vulnerability in Microsoft Office, published on 11 Sep 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-1246 in the wild and no public exploit code.

Affected product: Microsoft Office. 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-2019-1246/ (Markdown: https://insights.sbomify.com/CVE-2019-1246/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1246
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1246
- OSV: https://osv.dev/vulnerability/CVE-2019-1246

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1246/
Summaries are generated and may contain mistakes; the official description above is the record.