Patch for Windows Defender 0-day could allow attackers to fill hard disk:
The feud between NightmareEclipse and Microsoft shows no signs of resolving soon.
arstechnica.com/security/2026/07/patch-for-windows-defender-0-day-could-allow-attackers-to-fill-hard-disk/
Story Details
| Last Updated | |
| Total Articles | 3 |
Main Topics
data storage device containing recording media (either internally or in the form of a slot for removable media) together with electrical or mechanical parts for the operation of the media
Similar to This
Previous
Computerworld Oct 09
Bidding war over key component could eliminate third hard disk maker: Seagate and Toshiba are battling for control of magnetic head maker TDK ...
computerworld.com/article/4233232/bidding-war-over-key-component-could-eliminate-third-hard-disk-maker-2.html
blocksandfiles.com Oct 06
Seagate and Toshiba both want to acquire TDK's disk read/write head business
blocksandfiles.com/disk/2026/10/06/seagate-and-toshiba-both-want-to-acquire-tdks-disk-read/write-head-business/5301393
Stop Being Safe: Why You Should Infect Your PC With Malware Today: Bored with your functional, smooth-running PC? From ransomware skulls to free USB drives ...
pcmag.com/how-to/stop-being-safe-why-you-should-infect-your-pc-with-malware-today
Seagate One Touch (8TB) Review: Big Storage, No Brick Required: The Seagate One Touch external hard drive's big capacities, simple setup, and bus-powered ...
uk.pcmag.com/hard-drives/166178/seagate-one-touch-8tb-review-big-storage-no-brick-required
Microsoft Scrambles To Patch ShieldBreak Zero-Day Flaw In Windows Defender: The Nightmare-Eclipse and Microsoft saga continues with another major Windows ...
hothardware.com/news/microsoft-scrambles-to-patch-shieldbreak-zero-day-flaw-in-windows-defender
Disgruntled security researcher just dropped another Windows zero-day, right on schedule
techspot.com/news/113477-disgruntled-security-researcher-dropped-another-windows-zero-day.html
How I free up Windows disk space and shred sensitive data for free with open-source BleachBit
zdnet.com/article/bleachbit-free-windows-utility-free-up-disk-space/
Computerworld Jul 17
CISA urges immediate SharePoint hardening as exploits mount: Three actively exploited SharePoint vulnerabilities have landed in the KEV catalog ...
computerworld.com/article/4197818/cisa-urges-immediate-sharepoint-hardening-as-exploits-mount-2.html
New Microsoft Defender update can let hackers totally fill your Windows 11 PC disk space
neowin.net/news/new-microsoft-defender-update-can-let-hackers-totally-fill-your-windows-11-pc-disk-space/
Key FactsMicrosoft Defender Patch Triggers Extreme Disk Usage
Jul 14, 2026 · Reading time: ~30 sec.
Summary created with AI assistance · Source: neowin.net
Summary created with AI assistance · Source: neowin.net
- A recent update to Microsoft Defender's Malware Protection Engine fixes a privilege escalation flaw but can cause full disk exhaustion.
- The issue arises because cached Zone.Identifier alternate data streams lack enforced size limits, enabling excessive disk consumption.
- Attackers exploit a malicious SMB server to deliver oversized files that Defender caches indefinitely, leading to disk space depletion.
- This vulnerability is confirmed on Windows 11 25H2 and Windows Server 2025, with ongoing research into potential WebDAV exploitation.
Microsoft's patch for a Windows Defender 0-day may have created a new attack path
techspot.com/news/113076-microsoft-patch-windows-defender-0-day-may-have.html
Microsoft patches RoguePlanet Defender zero-day vulnerability: Microsoft has released a security patch to address a Defender zero-day vulnerability known as ...
bleepingcomputer.com/news/microsoft/microsoft-patches-rogueplanet-defender-zero-day-vulnerability/
Nightmare-Eclipse Drops Another BitLocker Bypass After YellowKey Patch: Nightmare-Eclipse, the current bane of Microsoft's existence, strike again with new ...
hothardware.com/news/nightmare-eclipse-drops-another-bitlocker-bypass-after-yellowkey-patch
Microsoft releases Windows 10 KB5094127 extended security update: Microsoft has released the Windows 10 KB5094127 extended security update, which fixes the June ...
bleepingcomputer.com/news/microsoft/microsoft-releases-windows-10-kb5094127-extended-security-update/
Windows Defender tricks that speed up your PC without sacrificing security: Antivirus software acts as a performance brake, especially on older PCs. However ...
pcworld.com/article/2924214/windows-defender-tricks-that-speed-up-your-pc-without-sacrificing-security.html
I created a super-slim Windows 11 install that's perfect for when Windows 10 falls out of support
xda-developers.com/super-slim-windows-11-install/
Supercharge Your Searches: How to Find Files on Your PC With Copilot: Copilot on Windows can now retrieve files from your PC’s hard drive. I've tested the ...
pcmag.com/explainers/supercharge-your-searches-how-to-find-files-on-your-pc-with-copilot
Computerworld May 17 25
19 ways to speed up Windows 10: If you want to optimize Windows 10, take a few minutes to try out these tips to speed up your PC and make it less prone to ...
computerworld.com/article/1634994/ways-to-speed-up-windows-10.html
Lightweight Windows 11 OS for Arm64 gets more compact — Tiny11 Core arrives with smaller footprint and emulation performance enhancements
tomshardware.com/software/operating-systems/lightweight-windows-11-os-for-arm64-gets-more-compact
Tiny11 Core: Download Tiny11 Core - Tiny11 Core brings everything you love about Windows and Tiny11, in a much smaller footprint.
techspot.com/downloads/7575-tiny11-core.html
Next