Microsoft working on Defender patch for RoguePlanet zero-day:
Microsoft confirmed that it's working on a security patch for a Defender zero-day ...
bleepingcomputer.com/news/microsoft/microsoft-working-on-defender-patch-for-rogueplanet-zero-day/
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Windows update patches a whopping 1,400 security bugs - including 2 zero days - ZDNET
zdnet.com/tech/windows-october-update-patches-file-explorer-bluetooth/
New Microsoft Defender 'ShieldCrash' zero-day grants SYSTEM access: An anonymous security researcher known as Nightmare Eclipse has released a new ...
bleepingcomputer.com/news/security/new-microsoft-defender-shieldcrash-zero-day-grants-system-access/
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
Microsoft working on Defender patch for ShieldBreak zero-day: Microsoft is working on a security patch for the "ShieldBreak" zero-day vulnerability ...
bleepingcomputer.com/news/security/microsoft-working-on-defender-patch-for-shieldbreak-zero-day/
Computerworld Aug 16
Researcher bypasses Microsoft Defender security patch, seizing control: The PoC posted by Nightmare Eclipse, who has been feuding with Microsoft for months ...
computerworld.com/article/4208774/researcher-bypasses-microsoft-defender-security-patch-seizing-control-2.html
Microsoft patches LegacyHive Windows zero-day vulnerability: Microsoft has released security patches to address a Windows zero-day vulnerability known as ...
bleepingcomputer.com/news/microsoft/microsoft-patches-legacyhive-windows-zero-day-vulnerability/
Microsoft's nemesis drops new zero-day privilege escalation vulnerability — attack grants system-level privileges, but it could already be patched
tomshardware.com/tech-industry/cyber-security/microsofts-nemesis-drops-new-zero-day-privilege-escalation-vulnerability-attack-grants-system-level-privileges-but-it-could-already-be-patched
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 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/
Dangerous Windows exploit: Microsoft promises a "high-quality update" - | Golem.de
golem.de/news/rogueplanet-exploit-microsoft-verspricht-ein-high-quality-sicherheitsupdate-2606-209904.html
"Race" continues: Microsoft is working on a fix for the zero-day vulnerability: Microsoft is working on a security patch for a zero-day vulnerability in ...
winfuture.de/news,159411.html
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's bug-hunting nemesis extends vendetta with more zero-day attacks — Nightmare Eclipse publishes RoguePlanet and GreatXML local privilege ...
tomshardware.com/tech-industry/cyber-security/microsofts-bug-hunting-nemesis-extends-vendetta-with-more-zero-day-attacks-nightmare-eclipse-publishes-rogueplanet-and-greatxml-local-privilege-escalation-exploits
dlvr.it Jun 10
Nightmare Eclipse publishes new Windows Defender zero-day: Revenge is a dish best served code
theregister.com/security/2026/06/10/nightmare-eclipse-publishes-new-windows-defender-zero-day/5253725
Microsoft patches record 206 Windows bugs in June update - and 3 are zero days: Among the 206 vulnerabilities are 32 critical ones and three publicly disclosed ...
zdnet.com/article/microsofts-june-windows-update-fixes-198-bugs-install-patch-asap/
Microsoft Defender 'RoguePlanet' zero-day grants SYSTEM privileges
bleepingcomputer.com/news/microsoft/microsoft-defender-rogueplanet-zero-day-grants-system-privileges/
CISA orders feds to patch BlueHammer flaw exploited as zero-day: CISA has ordered U.S. federal agencies to patch a Microsoft Defender privilege escalation flaw ...
bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-microsoft-defender-flaw-exploited-in-zero-day-attacks/
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