Microsoft Windows Kernel Out-of-Bounds Read Vulnerability Allowing Information Disclosure

Vulnerability

A vulnerability allowing out-of-bounds read has been identified in the Windows Kernel. This issue could enable an unauthorized attacker to disclose information over a network, specifically by reading the contents of Kernel memory from a user mode process.

Impact

Exploitation of this vulnerability could lead to unauthorized information disclosure, allowing attackers to access sensitive data from Kernel memory.

Remediation

Users can apply the security update provided by Microsoft to address this vulnerability. This security update is available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5099539 for Windows 10, KB5099540 for Windows Server 2022, KB5099536 for Windows Server 2025, KB5101650 for Windows 11, KB5099538 for Windows Server 2019, and KB5101649 for Windows 11 Version 26H1.

Added: Jul 14, 2026, 11:05 PM
Updated: Jul 14, 2026, 11:05 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.6
exploitability
5.4
remediation
7.7
relevance
9.6
threat
0.0
urgency
2.9
incentive
4.2

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.