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Known vulnerabilities in Microsoft Windows Server 2022

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CVE Summary Score Published
CVE-2026-70114 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70139 Heap-based buffer overflow in Windows Update Service allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70103 Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70104 Untrusted pointer dereference in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges… 7.8 High Oct 13, 2026
CVE-2026-70106 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70117 Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70063 Out-of-bounds read in Windows Kernel allows an authorized attacker to disclose information locally 4.7 Medium Oct 13, 2026
CVE-2026-70090 Use of uninitialized resource in Windows Netlogon allows an authorized attacker to disclose information locally 5.5 Medium Oct 13, 2026
CVE-2026-70064 Integer underflow (wrap or wraparound) in Windows Kerberos allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70077 Use after free in Windows Kernel allows an authorized attacker to disclose information locally 4.7 Medium Oct 13, 2026
CVE-2026-70079 Improper enforcement of behavioral workflow in Windows DNS allows an unauthorized attacker to deny service over a… 7.5 High Oct 13, 2026
CVE-2026-70082 Uncaught exception in Windows DNS allows an unauthorized attacker to deny service over a network 7.5 High Oct 13, 2026
CVE-2026-70083 Incorrect authorization in DNS Server allows an authorized attacker to perform tampering locally 5.5 Medium Oct 13, 2026
CVE-2026-70060 Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70097 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows… 5.6 Medium Oct 13, 2026
CVE-2026-70085 Missing authorization in DNS Server allows an authorized attacker to perform tampering locally 5.5 Medium Oct 13, 2026
CVE-2026-70062 Double free in Windows Libarchive allows an unauthorized attacker to execute code over a network 8.1 High Oct 13, 2026
CVE-2026-70087 Incorrect authorization in DNS Server allows an authorized attacker to bypass a security feature locally 5.5 Medium Oct 13, 2026
CVE-2026-70014 Use after free in Windows Cryptographic Services allows an authorized attacker to execute code over a network 7.5 High Oct 13, 2026
CVE-2026-70027 Heap-based buffer overflow in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70015 Use after free in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to elevate… 7.8 High Oct 13, 2026
CVE-2026-70017 Access of resource using incompatible type ('type confusion') in Windows Secure Kernel Mode allows an authorized… 5.5 Medium Oct 13, 2026
CVE-2026-70021 Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-70033 Missing release of memory after effective lifetime in Remote Desktop Gateway Service allows an unauthorized attacker… 7.5 High Oct 13, 2026
CVE-2026-70056 Use after free in Windows Update Service allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026

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