Heap-based buffer overflow in Microsoft products - CVE-2022-35742
Published: August 9, 2022 / Updated: August 18, 2022
Vulnerability identifier: #VU66320
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-35742
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in Microsoft Outlook when handling MIME headers. A remote attacker can send a specially crafted email to the victim and trigger heap corruption every time the email is processed by the application.
Successful exploitation may result in a perform a persistent denial-of-service condition.
Affected software
Microsoft Office LTSC
Microsoft 365 Apps for Enterprise
Microsoft Outlook
Microsoft Office
Microsoft 365 Apps for Enterprise
Microsoft Outlook
Microsoft Office
How to mitigate CVE-2022-35742
Install updates from vendor's website.