# CVE-2024-21413: Microsoft Outlook Remote Code Execution Vulnerability

> CVE-2024-21413: Microsoft Outlook Remote Code Execution Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2024-21413
Last updated: 2026-08-10T17:52:40Z

- Published: 2024-02-13 18:02 UTC · Updated: 2026-08-10 17:52 UTC · Assigner: microsoft
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- EPSS: 94.7%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-02-06, federal due date 2025-02-27, ransomware use: Unknown
- CWE: CWE-20

## Description

Microsoft Outlook Remote Code Execution Vulnerability

## CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- Microsoft: Microsoft 365 Apps for Enterprise
- Microsoft: Microsoft Office 2016
- Microsoft: Microsoft Office 2019
- Microsoft: Microsoft Office LTSC 2021

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-21413)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2024-21413)
- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21413](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21413)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2024-21413 · Markdown: https://rewindex.com/cve/CVE-2024-21413.md · JSON: https://rewindex.com/api/v1/cves/CVE-2024-21413 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:16:23.439Z