Microsoft Windows 11 26H2 vulnerabilities

CVE-2026-83888 [CRITICAL] CWE-126 CVE-2026-83888: Buffer over-read in Windows CD-ROM Driver allows an unauthorized attacker to elevate privileges over Buffer over-read in Windows CD-ROM Driver allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-69886 [CRITICAL] CWE-122 CVE-2026-69886: Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute c Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute code over a network.

CVE-2026-69883 [CRITICAL] CWE-416 CVE-2026-69883: Use after free in Windows iSCSI allows an unauthorized attacker to execute code over a network. Use after free in Windows iSCSI allows an unauthorized attacker to execute code over a network.

CVE-2026-96096 [CRITICAL] CWE-122 CVE-2026-96096: Heap-based buffer overflow in Windows Media Player allows an unauthorized attacker to execute code o Heap-based buffer overflow in Windows Media Player allows an unauthorized attacker to execute code over a network.

CVE-2026-88165 [HIGH] CWE-787 CVE-2026-88165: Out-of-bounds write in Active Directory Domain Services allows an authorized attacker to execute cod Out-of-bounds write in Active Directory Domain Services allows an authorized attacker to execute code over a network.

CVE-2026-105723 [CRITICAL] CWE-822 CVE-2026-105723: Untrusted pointer dereference in Windows Distributed File System (DFS) allows an unauthorized attack Untrusted pointer dereference in Windows Distributed File System (DFS) allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-83935 [CRITICAL] CWE-122 CVE-2026-83935: Heap-based buffer overflow in Microsoft XML allows an unauthorized attacker to execute code over a n Heap-based buffer overflow in Microsoft XML allows an unauthorized attacker to execute code over a network.

CVE-2026-97815 [CRITICAL] CWE-122 CVE-2026-97815: Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute cod Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.

CVE-2026-83889 [HIGH] CWE-763 CVE-2026-83889: Release of invalid pointer or reference in DNS Server allows an authorized attacker to execute code Release of invalid pointer or reference in DNS Server allows an authorized attacker to execute code over a network.

CVE-2026-83934 [HIGH] CWE-121 CVE-2026-83934: Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a n Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.

CVE-2026-97805 [CRITICAL] CWE-20 CVE-2026-97805: Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.

CVE-2026-83928 [HIGH] CWE-306 CVE-2026-83928: Out-of-bounds write in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthor Out-of-bounds write in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to execute code over a network.

CVE-2026-105010 [CRITICAL] CWE-416 CVE-2026-105010: Use after free in Microsoft Windows Search Component allows an unauthorized attacker to elevate priv Use after free in Microsoft Windows Search Component allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-100220 [HIGH] CWE-122 CVE-2026-100220: Heap-based buffer overflow in Windows Media Video Decoder allows an unauthorized attacker to execute Heap-based buffer overflow in Windows Media Video Decoder allows an unauthorized attacker to execute code over a network.

CVE-2026-83642 [HIGH] CWE-843 CVE-2026-83642: Access of resource using incompatible type ('type confusion') in DNS Server allows an unauthorized a Access of resource using incompatible type ('type confusion') in DNS Server allows an unauthorized attacker to execute code over a network.

CVE-2026-96952 [HIGH] CWE-122 CVE-2026-96952: Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.

CVE-2026-102203 [HIGH] CWE-843 CVE-2026-102203: Access of resource using incompatible type ('type confusion') in RPC Runtime allows an unauthorized Access of resource using incompatible type ('type confusion') in RPC Runtime allows an unauthorized attacker to execute code over a network.

CVE-2026-83874 [HIGH] CWE-122 CVE-2026-83874: Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code over a network.

CVE-2026-69985 [HIGH] CWE-122 CVE-2026-69985: Heap-based buffer overflow in Windows Libarchive allows an unauthorized attacker to execute code ove Heap-based buffer overflow in Windows Libarchive allows an unauthorized attacker to execute code over a network.

CVE-2026-88219 [HIGH] CWE-822 CVE-2026-88219: Untrusted pointer dereference in RPC Runtime allows an unauthorized attacker to execute code over a Untrusted pointer dereference in RPC Runtime allows an unauthorized attacker to execute code over a network.