Security · 2h ago
CVE-2026-50458: Windows Kernel Driver Flaw Allows Code Execution
A use-after-free vulnerability in the Windows Brokering File System driver (bfs.sys) was patched in the latest Patch Tuesday. The flaw, CVE-2026-50458, allows attackers to execute arbitrary code or escalate privileges by exploiting dangling pointers. Microsoft urges immediate patching for all affected Windows systems.
Meridian48 take
While this is a critical kernel-level flaw, the real test is how quickly enterprises apply the patch before attackers reverse-engineer the fix.
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CVE-2026-50458: Patching Use-After-Free Vulnerability in bfs.sys Windows Kernel Minifilter Driver →
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