#CVE-2026-33825
Microsoft Patch Tuesday April 2026: 168 Vulnerabilities Fixed Including Actively Exploited SharePoint Zero-Day
Microsoft's April 2026 Patch Tuesday fixes a record 168 vulnerabilities, including an actively exploited SharePoint zero-day (CVE-2026-32201) and a publicly disclosed Microsoft Defender privilege escalation flaw. Security teams...
Windows Defender Triple Zero-Day: BlueHammer, RedSun, and UnDefend Actively Exploited in the Wild
Three critical zero-day vulnerabilities — BlueHammer (CVE-2026-33825), RedSun, and UnDefend — have been discovered in Windows Defender's remediation engine. All three allow local privilege escalation to SYSTEM level...
Three Windows Defender Zero-Days Exploited in the Wild: BlueHammer Patched, RedSun and UnDefend Still Unpatched
A security researcher dropped three Windows Defender zero-day exploits in 13 days — BlueHammer (CVE-2026-33825), RedSun, and UnDefend. All three are now confirmed active in live attacks, with...