patch management

Microsoft’s January 2026 security roll‑up includes a newly tracked elevation‑of‑privilege entry — CVE‑2026‑20943 — tied to Microsoft Office Click‑to‑Run (C2R) components, and system administrators should treat the advisory as confirmed and actionable while understanding that public technical...

Microsoft’s Security Update Guide lists CVE-2026-20940 as an elevation-of-privilege (EoP) vulnerability in the Windows Cloud Files Mini Filter Driver, and defenders should treat any new Cloud Files mini-filter entry as a high-priority patch-and-hunt item until proven otherwise. Background /...

Microsoft has recorded CVE-2026-20938 as a vulnerability in Windows’ Virtualization‑Based Security (VBS) Enclave that can be leveraged by an authorized local actor to escalate privileges; Microsoft’s Update Guide identifies the entry as requiring administrators to map the CVE to per‑SKU KB...

Microsoft’s January 2026 security roll‑up includes CVE‑2026‑20927, a Server Message Block (SMB) Server vulnerability Microsoft classifies as a denial‑of‑service (DoS) issue; administrators should assume this flaw is actionable and prioritize patching, network isolation, and targeted mitigations...

Microsoft’s advisory for CVE-2026-20938 describes an elevation-of-privilege weakness in Windows’ Virtualization‑Based Security (VBS) Enclave, a security boundary designed to isolate sensitive runtime code and secrets; the vendor’s guidance makes the vulnerability’s existence clear and requires...

Microsoft’s advisory entry for CVE-2026-20932 confirms a Windows File Explorer information‑disclosure defect in the January 2026 update set, but the vendor’s public guidance is deliberately terse and leaves several technical details unverified — forcing administrators to treat the flaw as an...

Microsoft’s Security Update Guide records CVE-2026-20922 as a Windows NTFS vulnerability that can lead to remote code execution, and the vendor’s published “report confidence” metadata is the single most important triage signal for how aggressively administrators should respond. Background /...

A newly recorded elevation‑of‑privilege flaw in Windows Management Services (WMS) — tracked as CVE‑2026‑20924 — has been registered in Microsoft’s Security Update Guide and classified as an elevation of privilege risk on administrative hosts, forcing operators to treat management‑plane hosts as...

Microsoft’s Security Update Guide has recorded CVE-2026-20921 as an Elevation‑of‑Privilege (EoP) vulnerability affecting the Windows SMB Server, and the vendor’s public advisory currently signals limited technical detail while flagging the issue for remediation in the January 2026 update cycle...

Microsoft’s advisory listing for CVE-2026-20920 places this entry squarely in the long-running, high-impact family of Win32k kernel vulnerabilities that enable local elevation of privilege; the vendor’s published description and the accompanying confidence metric make clear that defenders should...

Microsoft has recorded CVE-2026-20918 as an Elevation of Privilege (EoP) vulnerability in Windows Management Services (WMS), and administrators should treat this as a high-priority patching and hunt exercise for any hosts that provide management-plane functionality or act as jump boxes. The...

Microsoft’s security tracking shows CVE-2026-20919 as a newly recorded Windows SMB Server elevation-of-privilege (EoP) vulnerability included in the January 2026 updates; administrators must treat it as a high-priority patch candidate, verify SKUs and KB mappings for their estate, and apply...

Microsoft has recorded CVE‑2026‑20869 as an elevation‑of‑privilege vulnerability in the Windows Local Session Manager (LSM) component; the advisory is published in Microsoft’s Security Update Guide but key technical details and per‑SKU KB mappings are rendered through an interactive MSRC page...

A newly recorded elevation‑of‑privilege vulnerability, tracked as CVE‑2026‑20864, affects the Windows Connected Devices Platform Service (Cdpsvc) and was included in Microsoft’s January 2026 security rollup; administrators should treat this as a high‑priority local privilege escalation risk and...

Microsoft’s Security Response Center has recorded CVE‑2026‑20859 as a Windows kernel‑mode driver elevation of privilege vulnerability that administrators must treat as a high‑priority operational risk while they confirm exact build mappings and deploy vendor fixes. The vendor’s public advisory...

Microsoft’s entry for CVE‑2026‑20847 in the Security Update Guide confirms a Windows File Explorer vulnerability that allows an attacker to perform spoofing—presenting misleading UI or network endpoints to a user or the system—and the vendor’s published “confidence” metric is central to how...

Microsoft’s Security Update Guide now records CVE‑2026‑20842 as an elevation‑of‑privilege flaw in the Desktop Window Manager (DWM) Core Library, but the vendor’s published record offers limited technical detail; administrators should treat the entry as a confirmed, high‑value local EoP and move...

Microsoft’s advisory record for CVE-2026-20840 lists a remote code-execution issue affecting the Windows NTFS stack and attaches Microsoft’s standard “report confidence” metadata to the entry — a signal designed to tell defenders how certain Microsoft is about the problem and how much technical...

Microsoft’s Security Update Guide lists dozens of CSC/Offline Files fixes over the past two years, but a clear, verifiable vendor entry for CVE-2026-20839 could not be located in public vendor and national vulnerability feeds at the time of writing — treat that identifier as unverified until the...

Microsoft’s advisory for CVE-2026-20836 names a DirectX Graphics Kernel elevation-of-privilege issue tied to the kernel-mode graphics driver (dxgkrnl.sys), but at the time of writing the vendor’s entry is rendered dynamically and the public record for this specific CVE is thin: the Security...