cve-2026-45600

CVE-2026-45600 is an Important-rated Windows Kernel-Mode Driver elevation-of-privilege vulnerability disclosed by Microsoft on June 9, 2026, as part of its Patch Tuesday release. The flaw affects Windows systems through a local privilege-escalation path, meaning it requires an attacker to already have some level of access to the target machine. Microsoft has provided limited public details to encourage patching without enabling attackers. For administrators, the key takeaway is to apply the June 2026 security update promptly, as this vulnerability could be used as a second-stage exploit in an intrusion chain. Discussions on WindowsForum emphasize treating CVE-2026-45600 as a credible kernel-level threat that demands immediate patching.