Microsoft Windows Server 2012 R2 vulnerabilities

CVE-2026-62784 [HIGH] CWE-122 CVE-2026-62784: Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorize Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to execute code over a network.

CVE-2026-48564 [HIGH] CWE-122 CVE-2026-48564: Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code over Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code over a network.

CVE-2026-54121 [HIGH] CWE-285 CVE-2026-54121: Improper authorization in Active Directory Certificate Services (AD CS) allows an authorized attacke Improper authorization in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges over a network.

CVE-2026-50369 [HIGH] CWE-362 CVE-2026-50369: Use after free in Windows Remote Desktop Services allows an authorized attacker to elevate privilege Use after free in Windows Remote Desktop Services allows an authorized attacker to elevate privileges over a network.

CVE-2024-43454 [HIGH] CWE-23 CVE-2024-43454: Windows Remote Desktop Licensing Service Remote Code Execution Vulnerability Windows Remote Desktop Licensing Service Remote Code Execution Vulnerability

CVE-2021-33757 [CRITICAL] CVE-2021-33757: Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability

CVE-2021-1722 [CRITICAL] CVE-2021-1722: Windows Fax Service Remote Code Execution Vulnerability Windows Fax Service Remote Code Execution Vulnerability

CVE-2022-35744 [CRITICAL] CVE-2022-35744: Windows Point-to-Point Protocol (PPP) Remote Code Execution Vulnerability Windows Point-to-Point Protocol (PPP) Remote Code Execution Vulnerability

CVE-2022-21993 [HIGH] CVE-2022-21993: Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability

CVE-2021-34494 [HIGH] CVE-2021-34494: Windows DNS Server Remote Code Execution Vulnerability Windows DNS Server Remote Code Execution Vulnerability

CVE-2026-83578 [CRITICAL] CWE-122 CVE-2026-83578: Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to exec Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to execute code over a network.

CVE-2026-68839 [CRITICAL] CWE-20 CVE-2026-68839: Heap-based buffer overflow in Windows USB Mass Storage Class Driver allows an unauthorized attacker Heap-based buffer overflow in Windows USB Mass Storage Class Driver allows an unauthorized attacker to execute code over a network.

CVE-2026-77493 [CRITICAL] CWE-415 CVE-2026-77493: Double free in Microsoft Graphics Component allows an unauthorized attacker to execute code over a n Double free in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.

CVE-2026-69493 [CRITICAL] CWE-122 CVE-2026-69493: Out-of-bounds read in Windows Event Logging Service allows an unauthorized attacker to execute code Out-of-bounds read in Windows Event Logging Service allows an unauthorized attacker to execute code over a network.

CVE-2026-69715 [CRITICAL] CWE-122 CVE-2026-69715: Out-of-bounds read in Windows Direct Show allows an unauthorized attacker to execute code over a net Out-of-bounds read in Windows Direct Show allows an unauthorized attacker to execute code over a network.

CVE-2026-56190 [CRITICAL] CWE-908 CVE-2026-56190: Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.

CVE-2026-70275 [CRITICAL] CWE-822 CVE-2026-70275: Untrusted pointer dereference in Windows CD-ROM Driver allows an unauthorized attacker to execute co Untrusted pointer dereference in Windows CD-ROM Driver allows an unauthorized attacker to execute code over a network.

CVE-2019-1212 [CRITICAL] CWE-787 CVE-2019-1212: A memory corruption vulnerability exists in the Windows Server DHCP service when processing speciall A memory corruption vulnerability exists in the Windows Server DHCP service when processing specially crafted packets. An attacker who successfully exploited the vulnerability could cause the DHCP server service to stop responding. To exploit the vulnerability, a remote unauthenticated attacker could send a specially crafted packet to an affected DH

CVE-2024-30010 [HIGH] CWE-23 CVE-2024-30010: Windows Hyper-V Remote Code Execution Vulnerability Windows Hyper-V Remote Code Execution Vulnerability

CVE-2025-33070 [HIGH] CWE-908 CVE-2025-33070: Use of uninitialized resource in Windows Netlogon allows an unauthorized attacker to elevate privile Use of uninitialized resource in Windows Netlogon allows an unauthorized attacker to elevate privileges over a network.