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Vulnerability
Microsoft Patch Tuesday April 2026: 168 Vulnerabilities Fixed Including Actively Exploited SharePoint Zero-Day
25 April 2026 dark6
Microsoft's April 2026 Patch Tuesday fixes a record 168 vulnerabilities, including an actively exploited SharePoint zero-day (CVE-2026-32201) and a publicly...
Vulnerability
Windows Defender Triple Zero-Day: BlueHammer, RedSun, and UnDefend Actively Exploited in the Wild
22 April 2026 dark6
Three critical zero-day vulnerabilities — BlueHammer (CVE-2026-33825), RedSun, and UnDefend — have been discovered in Windows Defender's remediation engine. All...
Vulnerability
Three Windows Defender Zero-Days Exploited in the Wild: BlueHammer Patched, RedSun and UnDefend Still Unpatched
19 April 2026 dark6
A security researcher dropped three Windows Defender zero-day exploits in 13 days — BlueHammer (CVE-2026-33825), RedSun, and UnDefend. All three...