Microsoft released its monthly security update on Tuesday 10th May 2022, patching 74 issues across its suite of products.
This Patch Tuesday, the breakdown of vulnerabilities includes 7 critical issues, with the remaining being labelled as important. Two of these vulnerabilities have been publicly known at the time of release, including one being actively exploited in the wild.
Tracked as CVE-2022-26925, this zero-day vulnerability is a spoofing issue which affects the Windows Local Security Authority. This is a “protected subsystem that authenticated and logs users onto the local system” according to Microsoft. This exploit could allow an attacker to coerce the domain controller to authenticate them, allowing them access to hashes and authentication protocols.
The two publicly known vulnerabilities addressed were:
The former of the two was tagged by Microsoft was “Exploitation More Likely”, meaning affected users should apply this month’s patches as soon as possible.
As reported by The Hacker News, this month’s patches address 24 remote code execution, 21 elevation of privilege, 17 information disclosure, and 6 denial of service vulnerabilities, among others.
A full list of Microsoft’s May 2022 patches can be found here: Microsoft Security Response Center