CYBER INSIDERS

UNC5221 Exploits Ivanti EPMM: What Adarma’s Incident Responders Have Uncovered


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In this episode of Cyber Insiders, Cian Heasley, Threat Lead at Adarma, walks us through our Incident Response team's investigation into the exploitation of Ivanti Endpoint Manager Mobile (EPMM) by UNC5221, a threat group linked to the Chinese state. 

Cian breaks down how the attackers chained CVE-2025-4427 and CVE-2025-4428 to gain unauthenticated remote code execution, what tools and techniques they used, and explains why this campaign shows signs of strategic pre-positioning. 

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CYBER INSIDERSBy Adarma