kernel privilege escalation

Microsoft published CVE-2026-40369 on May 12, 2026 as part of its May Patch Tuesday release, identifying it as a Windows kernel-mode driver vulnerability rated Important with a CVSS base score of 7.8. The flaw is not, on the public evidence available today, a panic-grade Windows emergency. But...

Microsoft’s CVE-2026-32070 shines a fresh spotlight on one of Windows’ most security-sensitive kernel components: the Common Log File System (CLFS) driver. The vulnerability is classified as an elevation of privilege issue, which means a successful exploit could let a local attacker move from...

Overview Microsoft’s CVE-2026-26176 is a Windows Client Side Caching driver vulnerability in csc.sys that can let a local attacker elevate privileges. In practical terms, that puts it in the same broad class as many of the most operationally relevant Windows security bugs: it does not require a...

Understanding CVE-2026-26173 and Microsoft’s AFD.sys Confidence Metric Microsoft’s CVE-2026-26173 entry points to a familiar but still dangerous Windows pattern: a kernel-adjacent privilege-escalation issue in the Ancillary Function Driver for WinSock (AFD.sys), the long-lived networking...

A sophisticated memory safety flaw has recently come to light in the Windows ecosystem, specifically within the heart of its graphical subsystem. Security researchers, industry analysts, and Microsoft itself have issued advisories regarding CVE-2025-30388, a heap-based buffer overflow that...