In March 2026, 31 high-impact vulnerabilities were actively exploited, highlighted by the Interlock Ransomware Group leveraging a CVSS 10.0 zero-day in Cisco Secure FMC (CVE-2026-20131). The attackers utilized insecure Java deserialization to gain root access, deploying custom RATs, memory-resident web shells, and ransomware across enterprise networks.
PLASMAGRID
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March 2026 CVE Landscape: 31 High-Impact Vulnerabilities Identified, Interlock Ransomware Group Exploits Cisco FMC Zero-Day Coruna: The Mysterious Journey of a Powerful iOS Exploit Kit Google Threat Intelligence Group discovered 'Coruna', a highly sophisticated iOS exploit kit containing 23 exploits that target iOS versions 13.0 through 17.2.1. Initially observed in use by a commercial surveillance vendor, the kit has since proliferated to state-sponsored and financially motivated threat actors to deploy PLASMAGRID, a payload designed to steal cryptocurrency wallets and financial data.
