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Known vulnerabilities in Microsoft Windows Server 2012 R2

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CVE Summary Score Published
CVE-2026-84015 Heap-based buffer overflow in Remote Access Point-to-Point Protocol (PPP) EAP-TLS allows an unauthorized attacker to… 9.8 Critical Oct 13, 2026
CVE-2026-84007 Out-of-bounds read in Remote Desktop Gateway Service allows an authorized attacker to disclose information over a… 6.5 Medium Oct 13, 2026
CVE-2026-83928 Out-of-bounds write in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to… 8.8 High Oct 13, 2026
CVE-2026-83929 Out-of-bounds write in Windows GDI allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-83920 Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges… 7.8 High Oct 13, 2026
CVE-2026-83921 Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges… 7.0 High Oct 13, 2026
CVE-2026-83914 Use after free in Microsoft XML allows an unauthorized attacker to execute code over a network 8.1 High Oct 13, 2026
CVE-2026-83916 Double free in Windows Error Reporting allows an authorized attacker to execute code locally 7.0 High Oct 13, 2026
CVE-2026-83919 Heap-based buffer overflow in Microsoft Internet Messaging API allows an authorized attacker to execute code locally 7.8 High Oct 13, 2026
CVE-2026-85841 Use after free in Windows DHCP Server allows an authorized attacker to execute code over a network 6.6 Medium Oct 13, 2026
CVE-2026-83911 Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-83912 Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70089 Heap-based buffer overflow in Windows GDI allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-70222 Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-70275 Untrusted pointer dereference in Windows CD-ROM Driver allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-70241 Use after free in Windows Kerberos allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-70286 Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83909 Exposure of sensitive system information to an unauthorized control sphere in Windows Win32 Kernel Subsystem allows an… 4.7 Medium Oct 13, 2026
CVE-2026-83879 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Overlay Filter… 7.0 High Oct 13, 2026
CVE-2026-83876 Use after free in Windows Shell allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83869 Integer underflow (wrap or wraparound) in DNS Server allows an unauthorized attacker to execute code over a network 9.8 Critical Oct 13, 2026
CVE-2026-83862 Use after free in Windows Network Load Balancing allows an unauthorized attacker to execute code over an adjacent… 8.8 High Oct 13, 2026
CVE-2026-83872 Incorrect conversion between numeric types in Windows TCP/IP allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83865 Relative path traversal in Windows Internet (wininet.dll) allows an authorized attacker to perform tampering locally 4.7 Medium Oct 13, 2026
CVE-2026-83836 Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code locally 7.8 High Oct 13, 2026

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