# CVE-2023-35389: Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

> An attacker can execute arbitrary code on Microsoft Dynamics 365 On-Premises servers via an XML External Entity vulnerability.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 Aug 2023
- **Updated:** 10 Aug 2026
- **Also known as:** GHSA-vx8f-24wp-mfwj

## What is CVE-2023-35389?

CVE-2023-35389 is a medium-severity vulnerability in Microsoft Dynamics 365, published on 8 Aug 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2023-35389?

It affects 1 product.


Products: Microsoft Dynamics 365.

## How do I fix CVE-2023-35389?

No fix has been published for CVE-2023-35389 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-35389 being exploited?

There is no known exploitation of CVE-2023-35389 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Dynamics 365

- [CVE-2026-47647](https://insights.sbomify.com/CVE-2026-47647/): Dynamics 365 Elevation of Privilege Vulnerability (critical 9.9)
- [CVE-2026-42898](https://insights.sbomify.com/CVE-2026-42898/): Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability (critical 9.9)
- [CVE-2026-32210](https://insights.sbomify.com/CVE-2026-32210/): Microsoft Dynamics 365 (online) Spoofing Vulnerability (critical 9.3)
- [CVE-2026-42833](https://insights.sbomify.com/CVE-2026-42833/): Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability (critical 9.1)
- [CVE-2024-38182](https://insights.sbomify.com/CVE-2024-38182/): Microsoft Dynamics 365 Elevation of Privilege Vulnerability (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-35389 and fix it if it is affected.

What it is: CVE-2023-35389 is a medium-severity vulnerability in Microsoft Dynamics 365, published on 8 Aug 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-35389 in the wild and no public exploit code.

Affected product: Microsoft Dynamics 365. 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-2023-35389/ (Markdown: https://insights.sbomify.com/CVE-2023-35389/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-35389
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-35389
- OSV: https://osv.dev/vulnerability/CVE-2023-35389

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-35389/
Summaries are generated and may contain mistakes; the official description above is the record.