Vulnerabilities of Microsoft Windows 11 version 26H1

Is your version affected?

CVE	Summary	Score	Published
CVE-2026-42990	Heap-based buffer overflow in SQL Server ODBC driver allows an unauthorized attacker to execute code over a network	9.8 Critical	Jul 14, 2026
CVE-2026-44815	Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to execute code over a network	9.8 Critical	Jun 9, 2026
CVE-2026-42904	Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent…	9.6 Critical	Jun 9, 2026
CVE-2026-45602	No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network	9.1 Critical	Jun 9, 2026
CVE-2026-47291	Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network	9.8 Critical	Jun 9, 2026
CVE-2026-45657	Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network	9.8 Critical	Jun 9, 2026
CVE-2026-41096	Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network	9.8 Critical	May 12, 2026
CVE-2026-33824	Exploited Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability	9.8 Critical	Apr 14, 2026