Dossier
zero-days
Coverage of zero-days in the Nexus archive.
- Three Microsoft Defender Zero-Days Actively Exploited; Two Still Unpatched
Huntress warns that three zero-day vulnerabilities in Microsoft Defender—BlueHammer, RedSun, and UnDefend—are being actively exploited by threat actors to gain elevated system privileges. Two of these vulnerabilities remain unpatched, posing ongoing security risks.
- Recently leaked Windows zero-days now exploited in attacks
Threat actors are exploiting three recently disclosed Windows security vulnerabilities in attacks aimed at gaining SYSTEM or elevated administrator permissions. The vulnerabilities, described as zero-days, were leaked and are now being actively used in cyberattacks.