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CRITICAL
Vulnerabilities
April 2026 Patch Tuesday: SharePoint Zero-Day, BlueHammer, & Adobe RCE
Microsoft's April 2026 Patch Tuesday addresses 167 vulnerabilities, including a SharePoint Server zero-day, Windows Defender 'BlueHammer' flaw, and an actively exploited
Runtime Rebel Intel
4 min read·Apr 15, 2026
CRITICAL
Vulnerabilities
Adobe Acrobat & Reader Zero-Day Exploitation: Immediate Patch Required
Adobe has patched an actively exploited Zero-Day in Acrobat and Reader. Attackers used crafted PDF files for at least four months. Update immediately.
Runtime Rebel Intel
4 min read·Apr 14, 2026
VU
CRITICAL
Vulnerabilities
CVE-2026-34621: Adobe Reader Zero-Day Exploited for Months Patched
Adobe releases critical updates for CVE-2026-34621, an Acrobat and Reader zero-day used for remote code execution. Patch immediately to prevent exploitation.
Runtime Rebel Intel
3 min read·Apr 12, 2026
CRITICAL
Vulnerabilities
Adobe Reader Zero-Day Exploited via Malicious PDF Documents
Researchers reveal a sophisticated Adobe Reader zero-day exploit used in the wild since late 2025, involving malicious PDF invoices to compromise systems.
Runtime Rebel Intel
3 min read·Apr 9, 2026