Microsoft Windows 11 26H1 vulnerabilities

CVE-2026-62688 [HIGH] CWE-122 CVE-2026-62688: Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate p Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

CVE-2026-62747 [HIGH] CWE-122 CVE-2026-62747: Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to el Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

CVE-2026-65774 [HIGH] CWE-122 CVE-2026-65774: Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-70345 [HIGH] CWE-122 CVE-2026-70345: Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-61923 [HIGH] CWE-122 CVE-2026-61923: Heap-based buffer overflow in Windows Display Enhancement Service allows an authorized attacker to e Heap-based buffer overflow in Windows Display Enhancement Service allows an authorized attacker to elevate privileges locally.

CVE-2026-65786 [HIGH] CWE-122 CVE-2026-65786: Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privil Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-62710 [HIGH] CWE-122 CVE-2026-62710: Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to el Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62885 [HIGH] CWE-122 CVE-2026-62885: Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges loc Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVE-2026-62752 [HIGH] CWE-122 CVE-2026-62752: Heap-based buffer overflow in Windows Kerberos allows an authorized attacker to elevate privileges l Heap-based buffer overflow in Windows Kerberos allows an authorized attacker to elevate privileges locally.

CVE-2026-62754 [HIGH] CWE-122 CVE-2026-62754: Heap-based buffer overflow in Windows Kerberos allows an authorized attacker to elevate privileges l Heap-based buffer overflow in Windows Kerberos allows an authorized attacker to elevate privileges locally.

CVE-2026-61353 [HIGH] CWE-122 CVE-2026-61353: Heap-based buffer overflow in Windows Telephony Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62712 [HIGH] CWE-122 CVE-2026-62712: Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges loc Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVE-2026-70347 [HIGH] CWE-122 CVE-2026-70347: Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-61930 [HIGH] CWE-122 CVE-2026-61930: Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges loc Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-62797 [HIGH] CWE-122 CVE-2026-62797: Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges local Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-56650 [HIGH] CWE-122 CVE-2026-56650: Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate p Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate privileges locally.

CVE-2026-57091 [HIGH] CWE-121 CVE-2026-57091: Stack-based buffer overflow in Windows File History Service allows an authorized attacker to elevate Stack-based buffer overflow in Windows File History Service allows an authorized attacker to elevate privileges locally.

CVE-2026-50332 [HIGH] CWE-122 CVE-2026-50332: Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges loc Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-50484 [HIGH] CWE-122 CVE-2026-50484: Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges loc Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-49175 [HIGH] CWE-122 CVE-2026-49175: Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locall Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally.