Handling the Vulnerability Surge in the Post-Mythos Era

This Qualys blog feed (Apr–May 2026) aggregates product, research, and advisory posts covering an elevated vulnerability landscape driven by AI-era disclosures and active exploitation. Key items include: a RedSun zero-day local privilege escalation in Microsoft Defender that allows low-privileged users to gain SYSTEM-level access and guidance to mitigate risk; April 2026 Oracle Critical Patch Update addressing 481 vulnerabilities; Microsoft/Adobe Patch Tuesday (Apr 2026) covering 163 vulnerabilities including multiple critical issues and at least one publicly disclosed and one actively-exploit