Cve 2026 55899
The latest Cve 2026 55899 coverage — news, analysis, and updates from the WindowsNews.AI desk.
Critical SharePoint RCE Patched a Month Ago — Is Your Server Still Exposed?
CVE-2026-58644 is a critical SharePoint Server RCE with a CVSS of 9.8, exploitable without authentication. The fix was included in June 2026 updates but only disclosed in July, meaning admins who kept current are safe while others face urgent risk. This article provides a practical checklist to verify protection and patch exposed servers immediately.
Microsoft’s July 2026 Windows Updates Seal a Serious NTFS Security Hole—Patch Now
The July 2026 Windows security updates fix a heap-based buffer overflow in NTFS (CVE-2026-58640) that could let attackers execute arbitrary code with only low privileges and user interaction. While not a network worm, the vulnerability affects all supported Windows and Windows Server releases. Home users should install the patch via Windows Update; IT admins must urgently update endpoints that handle untrusted files and confirm post-patch build numbers.
Microsoft Fixes Windows Narrator Flaw That Could Give Attackers System-Level Access
Microsoft's July 2026 Patch Tuesday fixes CVE-2026-58635, a command-injection vulnerability in Windows Narrator's braille support that allows a local attacker to escalate privileges to SYSTEM. All supported Windows versions are affected, and no workarounds exist—immediate patch deployment is recommended.
Patch Microsoft PC Manager Now to Close a Privilege Escalation Hole Windows Update Won’t Touch
Microsoft disclosed a local privilege-escalation vulnerability (CVE-2026-58636) in its PC Manager application, requiring a manual update to version 3.21.6.0. The flaw, not covered by Windows Update, allows a low-privileged attacker to gain full system control. This analysis explains the risk, why it’s easy to overlook, and exactly how users and IT administrators should patch or remove the utility.
Microsoft Patches Excel Flaw CVE-2026-58618 That Could Allow Remote Code Execution via Malicious Files
Microsoft’s July 2026 Patch Tuesday included a fix for CVE-2026-58618, a high-severity Excel vulnerability that could let attackers execute code via malicious workbooks. The flaw affects many Office versions; users and admins should update immediately.
Microsoft Issues Patch for Windows Admin Center Code Execution Flaw — Upgrade to 2.7.4 Now
Microsoft has patched CVE-2026-58631, an improper-authorization vulnerability in Windows Admin Center that allows an authenticated attacker to execute code on the gateway host. The fix is version 2.7.4, and administrators must upgrade all gateways, harden access, and monitor for signs of exploitation. This vulnerability, alongside four other WAC flaws fixed in July 2026, underscores the importance of treating management tools as high-priority security assets.
Microsoft Patches a Critical 8.8-Rated Privilege Hole in Configuration Manager 2509—Here’s Your Urgent Fix Checklist
Microsoft released a fix for CVE-2026-47301, an elevation-of-privilege vulnerability in Configuration Manager 2509 that lets a low-privileged authenticated attacker gain full control over the management platform without user interaction. With a CVSS score of 8.8 and network accessibility, it’s a high-risk flaw that demands immediate patching, account audits, and network hardening across enterprise environments.
Patch Your Windows PC Now: July 2026 Fixes for Print Spooler Remote Code Execution (CVE-2026-58608)
Microsoft has released a patch for CVE-2026-58608, a Windows Print Spooler remote code execution vulnerability with a CVSS score of 8.8. All supported Windows versions must install the July 14, 2026 cumulative updates to close the attack vector, which could allow lateral movement after low‑privilege authentication. Administrators should prioritize print servers and shared systems while verifying build numbers.
Critical Windows Graphics Bug Fixed in July Patch Tuesday—Patch Now to Prevent File-Based Attacks
Microsoft's July 2026 Patch Tuesday fixes CVE-2026-58609, a high-severity Windows Graphics Component vulnerability that could allow remote code execution via malicious files. The flaw affects all supported Windows versions and requires user interaction, making it a serious risk for endpoints that handle untrusted content. With no known exploits yet, prompt patch deployment is the recommended action.
Microsoft’s July Update Fixes a Kernel Flaw That Gives Attackers Full PC Control — What You Need to Know
CVE-2026-58602, a local privilege-escalation vulnerability in the Windows kernel, was patched on July 14, 2026. The flaw lets attackers with limited access take full control of Windows 11 and Server 2025 systems. Mitigation requires immediate deployment of the cumulative update and a reboot.
Microsoft’s Critical SharePoint Flaw Is a Network-Based Code Execution Nightmare—Update Your Servers Now
CVE-2026-50522 is an unauthenticated remote code execution flaw in on-premises SharePoint Server rated 9.8 critical. Microsoft released updates on July 14, 2026, and admins must patch immediately by installing the update and running the SharePoint configuration wizard on every server in the farm. Internet-facing servers are at highest risk, and mitigation steps like network restrictions can only buy a little time.
Update Bing on Your iPhone Now: Microsoft Fixes High-Risk Spoofing Vulnerability (CVE-2026-58595)
Microsoft has fixed CVE-2026-58595, a high-severity spoofing vulnerability in Bing Search for iOS with a CVSS 8.1 score. An update to version 33.4.440529002 closes a UI-layer flaw that could allow tapjacking attacks. iPhone users should immediately update the app; enterprises need to verify deployments via MDM and enforce the new build.
Microsoft’s July Windows Update Seals a Storage Bug That Could Hand Attackers SYSTEM Control
Microsoft’s July 2026 Patch Tuesday corrected a local privilege escalation flaw in Windows Storage that could let a restricted user become SYSTEM. The article breaks down the affected Windows versions, why the fix matters for home users and IT, and how to get protected before researchers turn the patch into an exploit blueprint.