cve-2026-33841

CVE-2026-33841 is a Windows Kernel elevation-of-privilege vulnerability disclosed by Microsoft in May 2026. Rated Important, it stems from a heap-based buffer overflow that allows an authorized local attacker to raise privileges on affected Windows client and server systems. While not publicly disclosed or exploited in the wild, Microsoft rates exploitation as more likely, making it a significant patch for administrators. This local privilege escalation flaw is a common bridge in modern intrusions, so applying the May 2026 update is recommended.