Cve 2026 55058
The latest Cve 2026 55058 coverage — news, analysis, and updates from the WindowsNews.AI desk.
Critical Windows Admin Center Flaw Exposed Servers to Takeover — Update Now
Microsoft's July 14, 2026 security update fixes CVE-2026-56197, a high-severity command injection flaw in Windows Admin Center that could allow remote code execution on gateway servers. All versions prior to 2.7.4 are affected, and administrators must upgrade immediately to prevent potential takeovers that could ripple through managed infrastructure.
Microsoft Defender for Mac Gets Emergency Patch for Privilege Escalation Flaw—Update Now
Microsoft patched a local privilege escalation flaw in Defender for Endpoint on macOS in June 2026 but only disclosed it on July 14. The fix is in agent build 101.26042.0020, and organizations must ensure every managed Mac is updated to prevent attackers with low-level access from gaining higher privileges.
Windows Admin Center 2.7.4 Closes Critical RCE Hole: Here’s Your Urgent Patch Checklist
Microsoft has released Windows Admin Center build 2.7.4 to fix CVE-2026-56196, a high-severity remote code execution vulnerability affecting all versions from 1809.0 through earlier builds. The authenticated path traversal flaw can allow attackers to seize control of management gateways and the servers they administer. IT administrators should urgently inventory, upgrade, harden access, and verify every WAC instance.
CVE-2026-56195: Microsoft's July 2026 Office Update Blocks a Stealthy Information Leak – Update Now
Microsoft's July 2026 Office update fixes CVE-2026-56195, an out-of-bounds read flaw that could leak memory contents after a user opens a malicious document. The patch covers all major Office versions on Windows and Mac. No active attacks are known, but users and IT administrators should apply the update immediately through normal channels to head off future exploitation.
July 2026 Patch Tuesday Seals Critical Media Foundation Hole That Could Hand Control to Attackers
Microsoft's July 14, 2026 Patch Tuesday fixes CVE-2026-56189, a heap-based buffer overflow in Windows Media Foundation that could let attackers execute code by tricking a user into opening a malicious media file. With a CVSS score of 7.8, the flaw requires user interaction but is rated high impact across confidentiality, integrity, and availability. The patch is included in cumulative updates for most supported Windows versions, but Windows 10 22H2 users without Extended Security Updates are left exposed, making inventory and migration a priority.
Microsoft Patches Record 570 Flaws, Including Exploited AD FS and SharePoint Zero-Days
Microsoft's July 2026 Patch Tuesday set a record with 570 security fixes, including two actively exploited zero-days in AD FS and SharePoint Server, and a publicly disclosed BitLocker bypass. The client update KB5101650 for Windows 11 24H2/25H2 also delivers quality-of-life improvements and a compatibility change that IT teams must test. Organizations should prioritize the AD FS and SharePoint patches, harden BitLocker protections, and adjust to the new AI-driven cadence of larger, more frequent updates.
Microsoft Closes Win32k Data Leak: July Updates Patch CVE-2026-56184
Microsoft's July 14, 2026 security updates address CVE-2026-56184, a local Win32k vulnerability that could let attackers read sensitive data. While rated Medium severity, the fix is critical for systems where local access is common. This article explains the flaw, who is at risk, and how to deploy the patch safely.
Windows 11 July 2026 Security Patches Plug MIDI Privilege Escalation Hole – KB5101650 and KB5101649 Explained
Microsoft’s July 14, 2026 Patch Tuesday includes a fix for CVE-2026-56187, a use-after-free privilege escalation bug in the Windows MIDI Service Module affecting all supported Windows 11 releases. The update, delivered via KB5101650 or KB5101649 depending on your version, moves systems to patched builds that close a local attack vector requiring no user interaction. While no active exploits are known, the cluster of three MIDI-related flaws this month makes immediate patching wise.
Why Every Windows User Should Apply July's KB5101650 Fix for NTFS Privilege Escalation
Microsoft addressed CVE-2026-56182, a high-severity NTFS elevation-of-privilege vulnerability, in its July 2026 cumulative updates. The flaw, rated 7.8 CVSS, could let a local attacker gain full system control after obtaining any foothold on a Windows machine. All users should install the appropriate KB fix—such as KB5101650 for Windows 11 24H2/25H2—immediately to eliminate the risk.
Patch Now: Microsoft Closes Windows 11 MIDI Service Flaw That Allowed Privilege Escalation
Microsoft's July 2026 Patch Tuesday fixes CVE-2026-56183, a high-severity privilege escalation vulnerability in the Windows 11 MIDI Service Module impacting versions 24H2, 25H2, and 26H1. The article details which builds contain the fix, explains the practical risk for home users and IT admins, and provides step-by-step patching guidance. It also highlights a compatibility hold for certain Dell systems and notes two additional MIDI bugs disclosed in the same month.
Critical 9.8-Rated RDP Vulnerability Fixed in July 2026 Patch—What You Need to Do Now
Microsoft's July 2026 Patch Tuesday fixes CVE-2026-56190, a 9.8-rated RDP vulnerability that allows unauthenticated remote code execution. All Windows versions from 10/11 to Server 2012-2025 are affected. Administrators must patch immediately, verify build numbers, and remove any internet-facing RDP access.
Microsoft’s July Patches Fix a Stealthy Windows WebView Flaw—Here’s How to Check Your Build
Microsoft’s July 2026 security updates fix CVE-2026-56173, a high-severity privilege escalation vulnerability in Windows WebView. The use-after-free bug affects Windows 10, 11, and Server, and could let a local attacker gain system-level control. Patches are delivered via cumulative updates; verifying the resulting build number is critical because the vulnerable WebView code is embedded throughout the OS and not just in the browser.
Microsoft Patches MSXML Flaw That Could Let Attackers Seize Admin Control on Windows
Microsoft’s July 14, 2026 security updates fix CVE-2026-50359, a high-severity privilege escalation flaw in the Windows MSXML library that could allow a standard user to gain full administrative control. The use-after-free bug affects a wide range of supported Windows releases, from Server 2012 to Windows 11 26H1, but has not been observed in active attacks. The article explains the vulnerability, details the affected builds, outlines practical steps for home users and IT admins, and emphasizes the importance of timely patching.