CVE-2024-30103: Microsoft Outlook Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 8.8)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2024-Jun

Released

2024-06-11

EPSS Score

15.07% (percentile: 94.6%)

FAQ

Is the Preview Pane an attack vector for this vulnerability? Yes, the Preview Pane is an attack vector. According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability? The attacker must be authenticated using valid Exchange user credentials. How could an attacker exploit this vulnerability? An attacker who successfully exploited this vulnerability could bypass Outlook registry block lists and enable the creation of malicious DLL files.

Affected Products (8)

Microsoft Office

• Microsoft Office 2019 for 32-bit editions
• Microsoft Office 2019 for 64-bit editions
• Microsoft 365 Apps for Enterprise for 32-bit Systems
• Microsoft 365 Apps for Enterprise for 64-bit Systems
• Microsoft Office LTSC 2021 for 64-bit editions
• Microsoft Office LTSC 2021 for 32-bit editions
• Microsoft Outlook 2016 (32-bit edition)
• Microsoft Outlook 2016 (64-bit edition)

Security Updates (2)

• 5002600
• 5002600

Acknowledgments

<a href="https://il.linkedin.com/in/arnoldosipov">Arnold Osipov</a> with <a href="https://www.morphisec.com/">Morphisec</a>, <a href="https://www.linkedin.com/in/shmuel-uzan-aa21ab158/">Shmuel Uzan</a> with <a href="https://www.morphisec.com/">Morphisec</a>, <a href="https://www.linkedin.com/in/smgoreli/">Michael Gorelik</a> with <a href="https://www.morphisec.com/">Morphisec</a>

Revision History

• 2024-06-11: Information published.