Microsoft Windows Server 2012 R2 vulnerabilities

CVE-2025-21307 [CRITICAL] CWE-416 CVE-2025-21307: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

CVE-2026-100202 [CRITICAL] CWE-416 CVE-2026-100202: Use after free in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute c Use after free in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code over a network.

CVE-2026-83517 [CRITICAL] CWE-122 CVE-2026-83517: 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-2026-69824 [CRITICAL] CWE-122 CVE-2026-69824: Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an unauthorized attacker to Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an unauthorized attacker to execute code over a network.

CVE-2026-69496 [CRITICAL] CWE-122 CVE-2026-69496: Heap-based buffer overflow in Windows Compressed Folder allows an unauthorized attacker to execute c Heap-based buffer overflow in Windows Compressed Folder allows an unauthorized attacker to execute code over a network.

CVE-2026-69829 [CRITICAL] CWE-122 CVE-2026-69829: Heap-based buffer overflow in Windows Shell allows an unauthorized attacker to execute code over a n Heap-based buffer overflow in Windows Shell allows an unauthorized attacker to execute code over a network.

CVE-2026-70296 [CRITICAL] CWE-787 CVE-2026-70296: Out-of-bounds write in Windows Imaging Component allows an unauthorized attacker to execute code ove Out-of-bounds write in Windows Imaging Component allows an unauthorized attacker to execute code over a network.

CVE-2026-69634 [CRITICAL] CWE-122 CVE-2026-69634: Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to execute code over a n Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to execute code over a network.

CVE-2026-85814 [CRITICAL] CWE-122 CVE-2026-85814: 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-2026-96113 [CRITICAL] CWE-122 CVE-2026-96113: Heap-based buffer overflow in DNS Server allows an unauthorized attacker to execute code over a netw Heap-based buffer overflow in DNS Server allows an unauthorized attacker to execute code over a network.

CVE-2026-54995 [CRITICAL] CWE-416 CVE-2026-54995: Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to ex Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.

CVE-2021-38666 [HIGH] CVE-2021-38666: Remote Desktop Client Remote Code Execution Vulnerability Remote Desktop Client Remote Code Execution Vulnerability

CVE-2023-21746 [HIGH] Windows NTLM Elevation of Privilege Vulnerability Windows NTLM Elevation of Privilege Vulnerability Windows NTLM Elevation of Privilege Vulnerability

CVE-2021-36947 [HIGH] CVE-2021-36947: Windows Print Spooler Remote Code Execution Vulnerability Windows Print Spooler Remote Code Execution Vulnerability

CVE-2025-33064 [HIGH] CWE-122 CVE-2025-33064: Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.

CVE-2026-70158 [HIGH] CWE-415 CVE-2026-70158: Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine

CVE-2026-69628 [HIGH] CWE-122 CVE-2026-69628: Heap-based buffer overflow in Windows iSCSI allows an authorized attacker to execute code over a net Heap-based buffer overflow in Windows iSCSI allows an authorized attacker to execute code over a network.

CVE-2026-72959 [HIGH] CWE-122 CVE-2026-72959: Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine

CVE-2026-56647 [HIGH] CWE-190 CVE-2026-56647: Integer overflow or wraparound in Windows Remote Access Service Infrastructure allows an authorized Integer overflow or wraparound in Windows Remote Access Service Infrastructure allows an authorized attacker to elevate privileges over a network.

CVE-2026-50444 [HIGH] CWE-306 CVE-2026-50444: Missing authentication for critical function in Windows Server Update Service allows an authorized a Missing authentication for critical function in Windows Server Update Service allows an authorized attacker to elevate privileges over a network.