Patch Tuesday Archives • Daily CyberSecurity

KB5124008 Breaks USB Audio and More in Windows 11 KB5124008 Windows 11 update breaking USB audio remote desktop and Hyper-V shared folders

KB5124008 Breaks USB Audio and More in Windows 11

Do Son September 14, 2026

Last week, Microsoft released its routine September 2026 updates for every supported product. Among them, the Windows...

KB5002914 Breaks Copy and Paste in Microsoft Excel KB5002914 Excel update breaking copy paste and formula dragging on a spreadsheet

KB5002914 Breaks Copy and Paste in Microsoft Excel

Do Son September 11, 2026

This week, Microsoft released its latest security updates for every supported product, and the various components of...

September 2026 Patch Tuesday Fixes 2 Exploited Windows Zero-Days Patch Tuesday zero-day CVE-2026-81963 and CVE-2026-85880 Windows elevation of privilege flaws exploited in the wild

Patch Tuesday zero-day CVE-2026-81963 and CVE-2026-85880 Windows elevation of privilege flaws exploited in the wild

September 2026 Patch Tuesday Fixes 2 Exploited Windows Zero-Days

Do Son September 8, 2026

TL;DR Microsoft’s September 2026 Patch Tuesday fixes 996 vulnerabilities. Two of them are zero-days already exploited in...

CVE-2026-62735 (CVSS 7.8): Windows Elevation of Privilege Flaw Details and PoC Now Public Windows HTTP.sys vulnerability CVE-2026-62735 heap overflow allowing local privilege escalation to SYSTEM, with public technical details and PoC exploit

Windows HTTP.sys vulnerability CVE-2026-62735 heap overflow allowing local privilege escalation to SYSTEM, with public technical details and PoC exploit

CVE-2026-62735 (CVSS 7.8): Windows Elevation of Privilege Flaw Details and PoC Now Public

Do Son September 8, 2026

A researcher published full technical details and proof-of-concept code for a Windows HTTP.sys vulnerability on September 2026....

Microsoft August 2026 Patch Tuesday zero-day CVE-2026-68820 WinSock afd.sys exploited in the wild security update

Microsoft August 2026 Patch Tuesday Fixes WinSock Zero-Day Exploited in the Wild

Do Son August 12, 2026

TL;DR Microsoft August 2026 Patch Tuesday fixes 421 vulnerabilities, with 62 rated critical. One flaw, CVE-2026-68820, is...

Public Exploit Code Released for CVE-2026-50343, a Windows InstallService Flaw That Grants SYSTEM Privileges Windows privilege escalation chain for CVE-2026-50343 showing InstallService loading a planted DLL and granting SYSTEM privileges

Windows privilege escalation chain for CVE-2026-50343 showing InstallService loading a planted DLL and granting SYSTEM privileges

Public Exploit Code Released for CVE-2026-50343, a Windows InstallService Flaw That Grants SYSTEM Privileges

Do Son August 4, 2026

TL;DR Researchers at Calif.io published full technical details and working proof-of-concept exploit code for CVE-2026-50343, tracked as...

Certighost CVE-2026-54121 Active Directory Certificate Services Elevation of Privilege Details and PoC Exploit Code Go Public Certighost AD CS vulnerability CVE-2026-54121 Active Directory Certificate Services elevation of privilege chase flow diagram

Certighost AD CS vulnerability CVE-2026-54121 Active Directory Certificate Services elevation of privilege chase flow diagram

Certighost CVE-2026-54121 Active Directory Certificate Services Elevation of Privilege Details and PoC Exploit Code Go Public

Do Son July 29, 2026

TL;DR Researchers have published full technical details and working proof-of-concept code for Certighost, tracked as CVE-2026-54121. The...

CVE-2026-50502: Public PoC Exploit Details Windows Event Log Remote Code Execution CVE-2026-50502 Windows Event Log RCE proof-of-concept exploit dropping an HTA file into a victim Startup folder over SMB

CVE-2026-50502 Windows Event Log RCE proof-of-concept exploit dropping an HTA file into a victim Startup folder over SMB

CVE-2026-50502: Public PoC Exploit Details Windows Event Log Remote Code Execution

Do Son July 29, 2026

TL;DR A researcher known as Pixis has published full details and proof-of-concept code for CVE-2026-50502. The flaw...

CVE-2026-42980 Windows privilege escalation flaw in kernel WMI granting SYSTEM access

Public PoC Released for CVE-2026-42980 Windows Privilege Escalation Flaw

Do Son July 21, 2026

TL;DR A public proof-of-concept now targets CVE-2026-42980, a Windows privilege escalation flaw in the NT kernel. The...

Microsoft Untangles Its Messy Windows Update Terminology: B Releases, Quality Updates, and More Windows monthly updates terminology explained including B release and quality updates

Windows monthly updates terminology explained including B release and quality updates

Microsoft Untangles Its Messy Windows Update Terminology: B Releases, Quality Updates, and More

Do Son July 16, 2026

Every month, Microsoft rolls out various Windows 10/11 updates in batches. These updates patch security vulnerabilities, fix...

Microsoft July 2026 Patch Tuesday zero-day vulnerabilities CVE-2026-56155 and CVE-2026-56164

Microsoft July 2026 Patch Tuesday Fixes 570 Flaws, Two Zero-Days Exploited in the Wild

Do Son July 14, 2026

TL;DR Microsoft’s July 2026 Patch Tuesday fixes 570 vulnerabilities, including 57 rated critical and 510 rated important....

Actively exploited SharePoint vulnerability CVE-2026-45659 enabling remote code execution, added to CISA KEV

Actively Exploited SharePoint Vulnerability Added to CISA KEV Catalog

Do Son July 2, 2026

TL;DR CISA added a Microsoft SharePoint vulnerability to its Known Exploited Vulnerabilities catalog on 1 July 2026....

Windows Recycle Bin Bug Surfaces After the June 2026 Update Windows Recycle Bin bug showing an internal $Rxxxxx filename in the delete confirmation dialog after the June 2026 update

Windows Recycle Bin bug showing an internal $Rxxxxx filename in the delete confirmation dialog after the June 2026 update

Windows Recycle Bin Bug Surfaces After the June 2026 Update

Do Son June 22, 2026

Microsoft released its June 2026 Patch Tuesday updates on June 9. Within days, users began reporting odd...

HTTP.sys RCE vulnerability, Windows HTTP stack exploit, CVE-2026-47291 Netlogon RCE vulnerability Exploited in the wild Secure Boot certificate renewal 2026, Windows 11 UEFI update Community-First AI Infrastructure, Microsoft self-funding energy mandate aka.ms/aoh online portal CVE-2025-55681, Windows DWM Elevation Windows Administrator Protection, CVE-2025-60718 Microsoft AI Compute, IREN Infrastructure Microsoft Japan PPA, Renewable Energy Microsoft AI Investment, Cloud Expansion Microsoft Azure, Startup Credits Infinite Workday, AI in Work Microsoft Russia, Bankruptcy AI code generation, Microsoft AI Microsoft Layoffs, Restructuring

Netlogon RCE Vulnerability Under Active Attack in the Wild

Do Son June 1, 2026

Cybercriminals are actively targeting corporate networks by utilizing a freshly uncovered security flaw. Specifically, attackers are abusing...

Oracle Releases Massive May 2026 Critical Security Patch Update PeopleSoft RCE security bug, unauthenticated HTTP exploit, CVE-2026-35273 Oracle security patch updates critical software vulnerabilities

PeopleSoft RCE security bug, unauthenticated HTTP exploit, CVE-2026-35273 Oracle security patch updates critical software vulnerabilities

Oracle Releases Massive May 2026 Critical Security Patch Update

Do Son May 29, 2026

Oracle has released its quarterly advisory detailing a major software rollout. This collection of Oracle security patch...

Microsoft Patch Tuesday May 2026 Netlogon RCE CVE-2026-41089 SharePoint Exploit Patch Tuesday Windows DWM Zero-Day CVE-2026-21519 CVE-2024-49039 Microsoft Patch Tuesday March 2025

Microsoft Patch Tuesday May 2026 Fixes 137 Flaws, Including Netlogon RCE and Critical SSO Bypass

Do Son May 13, 2026

Microsoft has dropped a heavy-hitting security update for May 2026, addressing a total of 137 vulnerabilities. This...

Wormable Bugs: Microsoft April 2026 Patch Tuesday Fixes Two “Zero-Interaction” RCE Flaws Microsoft Patch Tuesday fixes disclosed zero day vulnerabilities Windows Wormable Exploit April 2026 Patch Tuesday Microsoft Patch Tuesday Zero-Day Vulnerabilities Microsoft, Patch Tuesday CVE-2025-55234 CVE-2024-43573 and CVE-2024-43572 Microsoft Patch Tuesday Security Vulnerabilities

Microsoft Patch Tuesday fixes disclosed zero day vulnerabilities Windows Wormable Exploit April 2026 Patch Tuesday Microsoft Patch Tuesday Zero-Day Vulnerabilities Microsoft, Patch Tuesday CVE-2025-55234 CVE-2024-43573 and CVE-2024-43572 Microsoft Patch Tuesday Security Vulnerabilities

Wormable Bugs: Microsoft April 2026 Patch Tuesday Fixes Two “Zero-Interaction” RCE Flaws

Do Son April 17, 2026

The security landscape for Windows administrators just got significantly more urgent. As part of the April 2026...

Secure Boot & BitLocker Fixes: Everything You Need to Know About Windows 11 Update KB5083769 KB5083769 Update Windows 11 24H2 end of support File Explorer White Flash Windows 11 Dark Mode Bug Windows 11 SE, End of Support Windows Update, Automatic Upgrade CVE-2023-38146 Windows 10

KB5083769 Update Windows 11 24H2 end of support File Explorer White Flash Windows 11 Dark Mode Bug Windows 11 SE, End of Support Windows Update, Automatic Upgrade CVE-2023-38146 Windows 10

Secure Boot & BitLocker Fixes: Everything You Need to Know About Windows 11 Update KB5083769

Do Son April 16, 2026

Microsoft has commenced the distribution of its April 2026 security updates across its product ecosystem. For Windows...

Urgent Patch Alert: SharePoint Spoofing Under Active Attack as Microsoft Releases April 2026 Updates Microsoft Patch Tuesday May 2026 Netlogon RCE CVE-2026-41089 SharePoint Exploit Patch Tuesday Windows DWM Zero-Day CVE-2026-21519 CVE-2024-49039 Microsoft Patch Tuesday March 2025

Urgent Patch Alert: SharePoint Spoofing Under Active Attack as Microsoft Releases April 2026 Updates

Do Son April 15, 2026

Microsoft’s April 2026 Patch Tuesday has arrived with a massive security payload, addressing a staggering 163 vulnerabilities,...

Windows 11 Health Dashboard Hits “Zero Bugs” Ahead of April Updates Windows 11 25H2 mandatory update Windows 11 KB5074105 fix Windows 11 Performance, Misleading Claim Windows 11 Kerberos

Windows 11 25H2 mandatory update Windows 11 KB5074105 fix Windows 11 Performance, Misleading Claim Windows 11 Kerberos

Windows 11 Health Dashboard Hits “Zero Bugs” Ahead of April Updates

Do Son April 9, 2026

According to the latest dispatch from NEOWIN, Microsoft has updated the Windows 11 Health Dashboard—a repository dedicated...

OpenSSL Issues Major Security Advisory: RSA and Memory Vulnerabilities Fixed OpenSSL Vulnerability RSA Memory Leak OpenSSL Vulnerability CVE-2025-15467 CVE-2022-2274 OpenSSL Vulnerabilities, Timing Side-Channel

OpenSSL Vulnerability RSA Memory Leak OpenSSL Vulnerability CVE-2025-15467 CVE-2022-2274 OpenSSL Vulnerabilities, Timing Side-Channel

OpenSSL Issues Major Security Advisory: RSA and Memory Vulnerabilities Fixed

Do Son April 8, 2026

OpenSSL has released a comprehensive security advisory detailing seven vulnerabilities ranging from Moderate to Low severity. The...

Windows Secure Lock Screen Clock Lag Windows 11 KB5079391 error Windows 11 Kernel Driver Trust Microslop Windows 11 Windows 11 modem driver removal 2026, CVE-2025-24052 Agere driver exploit Windows 11 Password Icon Bug Lock Screen Glitch Windows 11 26H1 ARM Snapdragon X2 Windows 11 Reboot-Free, Insider Build Windows Update Error, 0x80070103 File Explorer, NTLM leak Windows bug, WinRE Windows Update, UAC prompts Secure Boot Certificate, Windows Security Windows 11 22H2 Installation security updates Windows UEFI CA 2023 Windows 11 25H2

The Infinite Loop: Microsoft Retracts Broken Windows 11 Update KB5079391

Do Son April 2, 2026

In the twilight of March, Microsoft disseminated a non-security, optional cumulative update, designated KB5079391, to patrons of...

Critical Alert 4 Active Exploits Detected Today