Windows RASMAN Denial of Service Vulnerability CVE-2026-21525

The service shows Running. Users say it stopped working hours ago. The Windows Service Control Manager only checks if the process is alive, not whether it's doing anything useful. FireDaemon Pro detects what Windows SCM misses: ✅ Resource Monitor (right-click any service): shows CPU%, Private Bytes, and Data I/O in real time for the entire process tree — not just the top-level process. Open multiple windows simultaneously, one per service ✅ Hang Detection (Lifecycle tab): uses the Windows IsHungAppWindow API to detect unresponsive message loops in GUI applications — configure to report the hang, or terminate and auto-restart after a set number of minutes ✅ Crash loop protection: Fail Detection in the Lifecycle tab limits total restarts across the entire service lifecycle — so a crashing service stops looping and writes a structured event rather than degrading the server indefinitely ✅ Events tab > After Program Crash disposition: FireDaemon Pro supplies the FD_PID environment variable automatically to any script you configure — invoke ProcDump with that PID before the restart and the developer gets a memory dump, not a bare timestamp Bottom line: a workload that looks healthy but produces nothing is the same as downtime. The monitoring has to match the reality. Free 30-day trial at firedaemon.com #WindowsServer #InfrastructureResilience #WindowsServerReliability #Monitoring #ITOperations

Wow, that’s an interesting insight👏. When we introduced a special event disposition for crashing programs, I never would have imagined that we’d be giving someone a tool they could use to generate a memory dump of a crashed program in order to investigate the cause of the crash and debug the program!

After Microsoft promised a year of "𝗥𝗲𝗮𝗹 𝗙𝗶𝘅𝗲𝘀" in Jan 2026, this Notepad vulnerability couldn't have come at a better time. 😂 𝗖𝗩𝗘-𝟮𝟬𝟮𝟲-𝟮𝟬𝟴𝟰𝟭: A Masterclass in Feature Bloat. For 30 years, Notepad was the safest, "dumbest" tool on Windows. It was the digital equivalent of a rock it just sat there and did exactly one thing handle plain text!! Then came the "modernisation". Microsoft added 𝘔𝘢𝘳𝘬𝘥𝘰𝘸𝘯 𝘴𝘶𝘱𝘱𝘰𝘳𝘵, which brought clickable links. Some overachieving dev thought it would be a great idea to parse and pre-load those handlers before the file even fully renders. The result? Zero validation on those handlers. An attacker can now craft a malicious .md file, get you to open it, click on a link within the .md file, and have Notepad silently launch unverified protocols that load and execute remote files. The moment they added "nice to have" features, they handed attackers an 8.8 RCE attack surface. 𝗙𝗲𝗮𝘁𝘂𝗿𝗲 𝗯𝗹𝗼𝗮𝘁 𝗶𝘀𝗻'𝘁 𝗷𝘂𝘀𝘁 𝗮𝗻𝗻𝗼𝘆𝗶𝗻𝗴. It’s a liability. Cant wait for windows 12 to have top of the line "AI" Features. 😮💨 Patch your Notepads. The rock now has a trigger. 🙃 #windows11 #Notepad #CVE202620841

🚀 Transforming security and compliance at Microsoft with Windows Hotpatch 🚀 Check out how we're using Windows Hotpatch to deliver seamless, real-time updates to thousands of devices across our enterprise. By eliminating the need for disruptive reboots, we’re keeping our workforce productive and our systems secure, all while maintaining compliance at scale. Why this matters: 🔒 Minimize downtime: Hotpatch applies critical updates without interrupting users. 💡 Boost compliance: Stay ahead of regulatory requirements with automated patching. 👩💻 Enhance employee experience: No more lost work or forced restarts. See how we’re setting the standard as Customer Zero—proving out new technology before it reaches you. 👉 Read the full story: https://msft.it/6040QjOXp #MicrosoftDigital #CustomerZero #Hotpatch #WindowsHotpatch #Windows #Microsoft

Assigning Process Accountability to Group Policy Refreshes. Hey All, Gaurav and Itay here with some updates to the Group Policy Service debug logging. What if you one day noticed that you had machines excessively reprocessing group policy? For a long time, GPSVC logging told you that a GP Refresh happened… but to many admins it was not clear why, not by whom, and not what process triggered it. Today we're going to talk about an update that addresses exactly that. We are adding several pieces of attribution data that make the logs dramatically more useful: Full Timestamps (now prints the date as well) Trigger Type (Command Line, API, etc.) Parent Process Path + PID GPUpdate PID (PID of GPUpdate.exe) Session ID User Account Context This behavior currently applies to Windows 11 versions 24H2 and 25H2, starting with the February 2026 preview updates or later. Note: When the Server operating system update becomes available, we... #techcommunity #azure #microsoft https://lnkd.in/etUXrv2n

🛠️ Practical Windows Commands Every IT Support Professional Should Know As an IT Support professional, these commands save time and solve issues faster 👇 🔹 When the PC is Slow or Freezing: • temp – Clear system temporary files • %temp% – Remove user temp files • prefetch – Delete cached program files • cleanmgr – Run Disk Cleanup • taskmgr – Check high CPU/RAM usage • services.msc – Manage startup services 🔹 When the Internet Isn’t Working: • ping google.com – Test connectivity • ipconfig – View network details • ipconfig /release & /renew – Refresh IP address • ipconfig /flushdns – Clear DNS cache • nslookup domain.com – Check DNS resolution • tracert google.com – Identify network path issues • netsh int ip reset – Reset network stack Mastering these basics makes troubleshooting faster and more efficient. IT Support is not just about knowing tools — it’s about knowing the right command at the right time. 🚀 #ITSupport #Helpdesk #WindowsCommands #Troubleshooting

🚀 10 days and 10 tips for Microsoft Tunnel Gateway Posting daily tips on deploying and troubleshooting Microsoft Tunnel Gateway: From prerequisites in Linux to final deployment in Intune. Content based on notes from the field. Day 2: 🔍 Expand Your Readiness Checks When Needed Read more: https://lnkd.in/ejDuH8RW #mindcore #mstunnel #microsoft #msintune #10days10tips

🔐 Is your Windows 365 or AVD device stuck on a Secure Boot certificate update? If you're seeing EventID 1795 in the system event log — you're not alone, and it's not your fault. Microsoft has confirmed a known issue affecting Secure Boot certificate updates on Windows 365 and AVD devices. Here's the short version: 👉 Both the host AND the VM need the March 2026 patch for the secure boot certificate update to succeed. The fix is coming — Microsoft has acknowledged it in a support ticket, though they couldn't share specifics on their infrastructure patching timeline. More details here 👇 🔗 https://lnkd.in/e82UVWvW

🔊Microsoft has introduced a powerful new report that gives better visibility into Windows feature update deployments. ▶️Instead of only seeing the final status (Installed, Failed, etc.), this report shows the full update journey from request to completion - helping admins understand what’s happening at every stage. ➡️Track the complete update process end-to-end ➡️View trends over the last 30 days ➡️Filter by policies and target versions ➡️Quickly identify and troubleshoot failures This report helps organizations move from reactive troubleshooting to proactive update management. Admins can identify issues early, reduce downtime, and ensure devices stay secure and up to date. Where to Find It ➡️Intune Admin Center > Reports > Windows Feature Updates > Feature update journey ➡️Trending and point in Time update state per Policy ➡️Target Release - Select the Target Version ➡️Policy - Select Version First ➡️Generate - Helps to generate the Report #MicrosoftIntune #WindowsUpdates #ITAdmin #DeviceManagement #Windows11 #Intune #HTMDCommunity

🔒 Patch Tuesday – March 2026: Fixes + Features https://lnkd.in/gT6spvWs This cycle delivered 78 fixes (3 critical), with no zero‑days reported. But beyond the numbers, the real story is in the enterprise impact: 🛠️ Security Fixes Office RCE via Preview Pane (CVE‑2026‑26113/26110) → silent compromise without opening files. Excel Information Disclosure (CVE‑2026‑26144) → data exfiltration risk, especially with AI workflows. ConfigMgr & Admin Center RCE → management tools becoming high‑value attack vectors. Critical vendor flaws across BeyondTrust, Fortinet, Dell, Cisco, Trend Micro, VMware, ServiceNow, Juniper, and more. Browsers & Mobile (Chrome, Firefox, Android, Apple WebKit) → multiple high‑severity memory corruption issues. ✨ New Windows 11 Features (KB5079473) Nearby Sharing improvements → convenient, but a potential DLP bypass if left unchecked. Quick Machine Recovery (QMR) → faster resilience, yet requires governance to avoid audit trail gaps. Sysmon integration → native visibility, but must align with existing SIEM/EDR stacks. Emoji 16.0 support → minor, but worth noting for industries with strict communication filtering. Printing subsystem improvements → better usability, but driver alignment and cloud routing need review. Display stack updates → driver compatibility critical for VDI and endpoint stability. ⚠️ Onsite IT reminder: These updates require a reboot to fully apply. These updates require a reboot to fully apply — skipping it leaves systems in a half‑patched state. Always roll out via a pilot ring first to validate drivers, printing, and feature behaviors before broad deployment. 📌 Takeaway: Patch Tuesday is no longer just about applying updates. It’s about governance foresight — mapping vulnerabilities and new features to compliance, operator usability, and enterprise risk. #PatchTuesday #Windows11 #EnterpriseIT #Compliance #EndpointSecurity #Governance #DLP #Sysmon #QMR #Automation #VDI #ITOperations #Printing #Reboot