🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read • Source: Microsoft KB5049614 • MSRC update-guide entry Related CVEs: CVE-2025-21176 Affected components: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022, 23H2 Edition (Server Core installation) Table of contents Symptom & Impact Environment […]
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read • Source: Microsoft KB5050009 • MSRC update-guide entry Related CVEs: CVE-2025-21294 CVE-2025-21295 CVE-2025-21296 CVE-2025-21297 CVE-2025-21298 CVE-2025-21309 CVE-2025-21307 CVE-2024-49120 +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read • Source: Microsoft KB5066840 • MSRC update-guide entry Related CVEs: CVE-2025-59295 CVE-2025-58739 CVE-2025-59208 Affected components: Windows Server 2025 Microsoft summary: Heap-based buffer overflow in Internet Explorer allows an unauthorized attacker to execute code over a […]
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read • Source: Microsoft KB5058405 • MSRC update-guide entry Related CVEs: CVE-2025-29966 CVE-2025-29967 CVE-2025-29833 CVE-2025-55229 CVE-2025-47955 CVE-2025-47969 CVE-2025-29959 CVE-2025-29960 +12 more Affected components: Windows Server 2025 Microsoft summary: Heap-based buffer overflow in Windows Remote Desktop allows […]
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read • Source: Microsoft KB5065430 • MSRC update-guide entry Related CVEs: CVE-2025-54918 CVE-2025-55226 CVE-2025-53799 CVE-2025-54099 CVE-2025-54101 CVE-2025-54110 CVE-2025-54111 CVE-2025-54894 +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Improper authentication in Windows NTLM […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read • Source: Microsoft KB5050525 • MSRC update-guide entry Related CVEs: CVE-2025-21176 Affected components: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read • Source: Microsoft KB5063899 • MSRC update-guide entry Related CVEs: CVE-2025-50176 CVE-2025-50177 CVE-2025-53766 CVE-2025-53778 CVE-2025-49751 CVE-2025-49743 CVE-2025-49761 CVE-2025-49762 +12 more Affected components: Windows Server 2025 Microsoft summary: Access of resource using incompatible type ('type confusion') […]
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read • Source: Microsoft KB5065427 • MSRC update-guide entry Related CVEs: CVE-2025-54918 CVE-2025-55226 CVE-2025-53799 CVE-2025-53800 CVE-2025-48807 CVE-2025-49734 CVE-2025-53797 CVE-2025-53798 +12 more Affected components: Windows Server 2016 Windows Server 2016 (Server Core installation) Microsoft summary: Improper authentication […]
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read • Source: Microsoft KB5050061 • MSRC update-guide entry Related CVEs: CVE-2025-21294 CVE-2025-21298 CVE-2025-21307 CVE-2025-21411 CVE-2025-21413 CVE-2025-21210 CVE-2025-21214 CVE-2025-21215 +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]
🟠 High ⏱ 5–30 min Last verified: 6 November 2025 Affected versions: Windows Server 2025 📖 ~2 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution — Primary Fix Solution — Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
