windows server

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5077212 • MSRC update-guide entry Related CVEs: CVE-2026-21519 CVE-2026-21248 CVE-2026-21247 CVE-2026-21242 CVE-2026-21234 CVE-2026-21236 CVE-2026-21533 CVE-2026-21513  +12 more Affected components: Windows Server 2022 Windows Server 2022, 23H2 Edition (Server Core installation) Microsoft summary: […]

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5087544 • MSRC update-guide entry Related CVEs: CVE-2026-35421 CVE-2026-32161 CVE-2026-40403 CVE-2026-21530 CVE-2026-33834 CVE-2026-33839 CVE-2026-34329 CVE-2026-34330  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Heap-based buffer overflow in Windows […]

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5055527 • MSRC update-guide entry Related CVEs: CVE-2025-26663 CVE-2025-26686 CVE-2025-26670 CVE-2025-27480 CVE-2025-27482 CVE-2025-27491 CVE-2023-40547 CVE-2025-26664  +12 more Affected components: Windows Server 2016 Windows Server 2016 (Server Core installation) Microsoft summary: Use after […]

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5070881 • MSRC update-guide entry Related CVEs: CVE-2025-59287 Affected components: Windows Server 2016 (Server Core installation) Microsoft summary: Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to […]

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5078885 • MSRC update-guide entry Related CVEs: CVE-2026-23668 CVE-2026-23669 CVE-2026-23671 CVE-2026-23672 CVE-2026-23673 CVE-2026-24285 CVE-2026-24287 CVE-2026-24289  +12 more Affected components: Windows Server 2022 Windows Server 2022 (Server Core installation) Microsoft summary: Concurrent execution […]

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5065474 • MSRC update-guide entry Related CVEs: CVE-2025-54918 CVE-2025-55226 CVE-2025-55236 CVE-2025-53799 CVE-2025-53800 CVE-2025-55224 CVE-2025-48807 CVE-2025-49734  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Improper authentication in Windows NTLM […]

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read  •  Source: Microsoft KB5061010 • MSRC update-guide entry Related CVEs: CVE-2025-49735 CVE-2025-33071 CVE-2025-33070 CVE-2025-32712 CVE-2025-32713 CVE-2025-32714 CVE-2025-32715 CVE-2025-32718  +12 more Affected components: Windows Server 2025 Microsoft summary: Use after free in Windows KDC Proxy Service […]

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5068332 • MSRC update-guide entry Related CVEs: CVE-2025-55248 Affected components: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022, 23H2 Edition (Server Core installation) Microsoft summary: Inadequate encryption strength in .NET.NET […]

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5058383 • MSRC update-guide entry Related CVEs: CVE-2025-32710 CVE-2025-29966 CVE-2025-29967 CVE-2025-29833 CVE-2024-49128 CVE-2025-55229 CVE-2025-47955 CVE-2025-29959  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Use after free in Windows […]

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read  •  Source: Microsoft KB5063948 • MSRC update-guide entry Related CVEs: CVE-2025-50177 CVE-2025-53766 CVE-2025-53778 CVE-2025-49743 CVE-2025-49762 CVE-2025-50154 CVE-2025-50156 CVE-2025-50158  +12 more Affected components: Windows Server 2025 Microsoft summary: Use after free in Windows Message Queuing allows […]