High severity7.8NVD Advisory· Published Aug 14, 2026· Updated Sep 3, 2026
CVE-2026-69414
CVE-2026-69414
Description
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:microsoft:malware_protection_engine:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:malware_protection_engine:-:*:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69414nvdVendor Advisory
News mentions
13- ⚡ Weekly Recap: Rogue AI Agents, WeChat Worm, PaperCut Attacks, AI Espionage, and RootkitsThe Hacker News · Sep 14, 2026
- Weekly Cybersecurity Newsletter Bulletin – Microsoft 0-day, FortiOS, PAN-OS Flaw, Revolut Data Breach, and 20+ StoriesCyber Security News · Sep 14, 2026
- Nightmare-Eclipse Strikes Again With 'ShieldCrash' Windows ExploitDark Reading · Sep 10, 2026
- New ‘ShieldCrash’ Zero-Day Exploit Targets Microsoft DefenderSecurityWeek · Sep 10, 2026
- Serial Microsoft 0-day hunter drops yet another Defender exploitThe Register Security · Sep 9, 2026
- New Windows Defender ShieldCrash 0-Day Bypasses Microsoft Patch to Read Files as SYSTEMCyber Security News · Sep 9, 2026
- September 2026 Patch Tuesday: Record patch count, 2 zero-days, and a SigRed successorHelp Net Security · Sep 9, 2026
- Researcher Drops New Microsoft Defender PoC Showing ShieldBreak Patch Can Be BypassedThe Hacker News · Sep 9, 2026
- September 2026 Patch Tuesday forecast: All we need is more timeHelp Net Security · Sep 4, 2026
- Researcher Releases FalconFlank PoC Showing Privilege Escalation in CrowdStrike FalconThe Hacker News · Sep 3, 2026
- Microsoft Patches Exploited Entra ID VulnerabilitySecurityWeek · Aug 21, 2026
- ShieldBreak bypasses Microsoft’s patch for earlier Defender flawMalwarebytes Labs · Aug 17, 2026
- September 2026 Patch Tuesday: Two Exploited Zero-Days and 113 Critical Vulnerabilities Among 972 CVEsCrowdStrike Blog