Cve 2026 50377
The latest Cve 2026 50377 coverage — news, analysis, and updates from the WindowsNews.AI desk.
Microsoft’s July 14 patch fixes DWM bug that leaks secrets to any logged-in user
Microsoft's July 14, 2026 security update patches CVE-2026-50437, an information-disclosure flaw in the Windows Desktop Window Manager that lets a local attacker read sensitive memory without user interaction. All supported Windows versions are affected, and there are no workarounds—patch now.
Microsoft’s July Update Blocks a Dangerous Kernel Elevation Bug — Here’s What You Need to Do
Microsoft’s July 14, 2026 updates patch a local Windows kernel vulnerability that can give attackers SYSTEM privileges. The bug affects recent Windows 11 and Server 2025 builds, and while no exploits are active, Microsoft rates exploitation as likely. Users and admins should install the cumulative updates promptly and verify their builds.
Microsoft's July Patch Tuesday Fixes Window into Windows Crypto Secrets (CVE-2026-50352)
Microsoft's July 14, 2026 Patch Tuesday release addresses CVE-2026-50352, an information disclosure vulnerability in Windows Cryptographic Services. The flaw, rated Important with a CVSS 5.5, requires local access but can expose high-value data on affected Windows 10, 11, and Server machines. Users and administrators should install the latest cumulative updates immediately, especially on shared systems.
Microsoft’s July Patch Tuesday Seals a Kernel-Level Graphics Hole Attackers Could Chain
Microsoft’s July 2026 Patch Tuesday addresses CVE-2026-50382, a critical untrusted pointer dereference in the Windows DirectX Graphics Kernel. The local privilege escalation flaw lets low-privileged attackers gain SYSTEM-level control, with no workaround beyond patching. All supported Windows client and server versions are affected, and admins should test for known side effects like TDI driver changes and a BitLocker quirk on Server 2022 before deploying widely.
Microsoft Patches Remote Desktop Flaw Leaking Memory (CVE-2026-50445) – What You Must Know
Microsoft's July 2026 Patch Tuesday includes a fix for CVE-2026-50445, a buffer over-read in Windows Remote Desktop Protocol that could allow unauthenticated attackers to read memory contents. The flaw affects all supported Windows 10, Windows 11, and Windows Server releases. While exploitation is rated less likely, the widespread use of RDP makes immediate patching essential—especially for internet-facing systems. Home users should run Windows Update, while IT admins need to prioritize exposed servers and complement the patch with network hardening measures.
Microsoft Shuts Down Windows OLE Flaw That Escalates Low-Privilege Users to Full SYSTEM Access
Microsoft's July 2026 Patch Tuesday includes a fix for CVE-2026-50344, an important-rated local privilege escalation vulnerability in Windows OLE. With a CVSS score of 7.8, the flaw lets a low-privileged attacker gain SYSTEM access with no user interaction. The update affects Windows 10, 11, and Server, and administrators should deploy it promptly, verifying specific build numbers after reboot.
Microsoft’s July Patch Closes GDI Hole That Could Give Away Your PC’s Control
Microsoft’s July 14, 2026 security update patches CVE-2026-50387, a high-severity Windows GDI vulnerability that lets attackers escalate privileges after local access. The flaw affects multiple Windows versions and Office for Mac/Android, making prompt patching essential for shared systems and servers with interactive logons.
Microsoft Fixes NTFS Code-Execution Bug—But It’s Not the Network Worm You Feared
Microsoft’s July 2026 cumulative update patches a heap-based buffer overflow in the Windows NTFS driver (CVE-2026-50448) that could allow code execution via a malicious file or removable drive. The flaw requires local access and user interaction—not a network worm—but is serious enough to warrant fast deployment, especially on systems that handle untrusted data.
Microsoft Fixes Kernel Use-After-Free Flaw in July 2026 Patches; Dell PCs Temporarily Blocked
Microsoft's July 14, 2026 security updates patch CVE-2026-50397, a Windows kernel use-after-free vulnerability that allows a local attacker to elevate privileges to SYSTEM. A temporary compatibility hold blocks the update on certain Dell Intel PCs due to stability issues; all other affected Windows versions receive builds that eliminate the flaw. No active exploitation has been detected, but the bug's location makes it a potent post-compromise tool, so administrators should verify build numbers and deploy the patch once the Dell hold is lifted.
CVE-2026-50405: Microsoft Fixes Windows Networking Flaw That Could Grant Attackers Higher Privileges
Microsoft’s July 2026 Patch Tuesday fixes CVE-2026-50405, an important elevation-of-privilege flaw in the Windows Filtering Platform. The vulnerability could allow an attacker with local access to gain SYSTEM privileges, but no active exploitation has been reported. All Windows users and admins should apply the latest cumulative update immediately to prevent potential attack chains.
July 2026 Windows Security Update Closes Dangerous Netlogon Privilege Hole CVE-2026-50346
Microsoft’s July 2026 Patch Tuesday delivers a fix for CVE-2026-50346, a local privilege escalation vulnerability in the Windows Netlogon RPC Runtime. With a CVSS score of 7.8, the flaw allows low-privileged attackers to gain system control once they have local access. All supported Windows client and server versions are affected; domain controllers and multi-user systems should be patched immediately.
Kernel Memory Leak in Windows Cloud Files Driver Fixed in July 2026 Cumulative Updates
Microsoft's July 2026 Patch Tuesday addresses CVE-2026-50401, an information disclosure bug in the Windows Cloud Files Mini Filter driver. The flaw allows a local attacker to read kernel memory, potentially aiding further compromise, and affects all supported Windows editions. Users and administrators should install the corresponding cumulative updates, verify build numbers, and prioritize machines where multiple users share interactive access.
Patch Now: Windows RDP Client Flaw Exposes Data to Malicious Servers
Microsoft's July 2026 Patch Tuesday includes a fix for CVE-2026-50376, an Important-rated information-disclosure flaw in the Windows RDP client. The vulnerability can leak sensitive data when a user connects to a malicious RDP server, and it affects any Windows device that initiates outbound Remote Desktop sessions. This article explains the risk, who is most exposed, and exactly how to get protected.