CVE-2024-38173 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. Microsoft Outlook Remote Code Execution Vulnerability. EPSS estimates a 0.66% chance of exploitation in the next 30 days.

## Description

Microsoft Outlook Remote Code Execution Vulnerability

## Metrics

- **CVSS**: 6.7/10
- **CVSS Vector**: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- **EPSS Probability**: 0.66% (47.0th percentile) - Probability of exploitation in the next 30 days. [Learn more](https://www.first.org/epss/)

## Weakness Enumeration

- [CWE-73](https://cwe.mitre.org/data/definitions/73.html)

## Affected Software

| Vendor | Product | Versions |
| --- | --- | --- |
| Microsoft | 365 Apps | All versions |
| Microsoft | Office | 2019 |
| Microsoft | Office Long Term Servicing Channel | 2021 |
| Microsoft | Outlook | 2016 |

## References

- [Vendor Advisory](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38173) Patch

## Timeline

- **Published**: Aug 13, 2024
- **Last Modified**: Jun 17, 2026
- **Status**: Analyzed

## Frequently Asked Questions

### What is CVE-2024-38173?

Microsoft Outlook Remote Code Execution Vulnerability

### How severe is CVE-2024-38173?

CVE-2024-38173 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

### How do I fix CVE-2024-38173?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also [run a Strix scan](https://app.strix.ai/) to test if your systems are affected.