Microsoft's May 2023 Patch Tuesday addresses critical vulnerabilities and zero-day exploits.

Microsoft's May Patch Tuesday includes 38 security fixes, with six deemed critical. Two of the vulnerabilities have already been exploited by attackers, including a Win32k elevation of privilege flaw and a Secure Boot security feature bypass vulnerability used by the BlackLotus bootkit. A third vulnerability, a Windows OLE Remote Code Execution flaw, has been publicly disclosed. Adobe released one security bulletin for Adobe Substance 3D Painter, while SAP released 25 new and updated security patches, including two Hot News and nine High Priority notes. Android's latest security bulletin resolved 18 flaws, with the most severe requiring user interaction to exploit.