Unpatched Zero-Day Vulnerabilities in Windows Defender Being Actively Exploited

📌 Unpatched zero-day vulnerabilities in Windows Defender, named BlueHammer, RedSun, and UnDefend, are currently being exploited in attacks. The flaws affect Microsoft’s built-in security software, though no specific CVE identifiers, affected versions, or exact attack vectors were disclosed. The report confirms active exploitation but provides no details on the threat actors, targeted regions, or the scale of the attacks. No mitigation steps or patches were mentioned as available at the time of reporting. The vulnerabilities were highlighted without additional technical specifics or impact assessments beyond their exploitation status.