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Known vulnerabilities in Microsoft Windows Server 2012 (Server Core installation)

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CVE Summary Score Published
CVE-2026-42976 Missing authentication for critical function in Windows RPC API allows an authorized attacker to elevate privileges… 7.8 High Aug 11, 2026
CVE-2026-70347 Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally 7.8 High Aug 11, 2026
CVE-2026-70345 Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally 7.8 High Aug 11, 2026
CVE-2026-70346 Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally 7.8 High Aug 11, 2026
CVE-2026-70344 Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally 7.8 High Aug 11, 2026
CVE-2026-61352 Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client… 7.5 High Aug 11, 2026
CVE-2026-70330 Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally 6.7 Medium Aug 11, 2026
CVE-2026-70304 Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally 6.7 Medium Aug 11, 2026
CVE-2026-70307 Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges… 7.0 High Aug 11, 2026
CVE-2026-68820 Exploited Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability 7.0 High Aug 11, 2026
CVE-2026-68819 Buffer over-read in Windows Network File System allows an unauthorized attacker to deny service over a network 5.9 Medium Aug 11, 2026
CVE-2026-66799 Heap-based buffer overflow in Windows Key Guard allows an authorized attacker to elevate privileges locally 7.8 High Aug 11, 2026
CVE-2026-65814 Heap-based buffer overflow in Windows Storage Port Driver allows an authorized attacker to elevate privileges locally 7.8 High Aug 11, 2026
CVE-2026-65784 Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally 5.5 Medium Aug 11, 2026
CVE-2026-65662 Out-of-bounds read in Windows GDI allows an authorized attacker to disclose information locally 5.5 Medium Aug 11, 2026
CVE-2026-62908 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Backup Engine… 7.0 High Aug 11, 2026
CVE-2026-62893 Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network 9.8 Critical Aug 11, 2026
CVE-2026-62889 Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a… 8.1 High Aug 11, 2026
CVE-2026-62890 Heap-based buffer overflow in Windows GDI+ allows an authorized attacker to execute code locally 7.8 High Aug 11, 2026
CVE-2026-62877 Stack-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally 7.8 High Aug 11, 2026
CVE-2026-62878 Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network 9.8 Critical Aug 11, 2026
CVE-2026-62876 Out-of-bounds read in Windows Win32K allows an authorized attacker to elevate privileges locally 7.8 High Aug 11, 2026
CVE-2026-62819 Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access… 8.1 High Aug 11, 2026
CVE-2026-62818 Use after free in Active Directory Certificate Services (AD CS) allows an authorized attacker to execute code over a… 8.8 High Aug 11, 2026
CVE-2026-62816 Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute… 8.8 High Aug 11, 2026

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