CVE-2022-35742: Microsoft Outlook Denial of Service Vulnerability

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Category

Denial of Service

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2022-Aug

Released

2022-08-09

Last Updated

2022-08-19

EPSS Score

6.95% (percentile: 91.4%)

FAQ

How could an attacker exploit this vulnerability? The attacker could exploit this vulnerability by sending a specially crafted email which triggers automatically when it is retrieved and processed by the email server. This could lead to a denial of service BEFORE the email is viewed in the Preview Pane.

Affected Products (11)

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)
• Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
• Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
• Microsoft Outlook 2013 RT Service Pack 1

Security Updates (4)

• 5002051
• 5002051
• 5001990
• 5001990

Acknowledgments

insu of 78 Research Lab working with <a href="https://www.zerodayinitiative.com/">Trend Micro Zero Day Initiative</a>

Revision History

• 2022-08-09: Information published.
• 2022-08-19: Updated FAQ information. This is an informational change only.