March 2026 CVE Landscape: 31 High-Impact Vulnerabilities Identified, Interlock Ransomware Group Exploits Cisco FMC Zero-Day
Summary
In March 2026, there was a significant surge in high-impact vulnerabilities, with Recorded Future's Insikt Group identifying 31 critical flaws, a substantial increase from the previous month. Notably, the Interlock ransomware group is actively exploiting a zero-day vulnerability in Cisco's Firepower Management Center (FMC).
IFF Assessment
The article details an increase in high-impact vulnerabilities and active exploitation of a zero-day by a ransomware group, posing direct threats to organizations.
Severity
The Cisco FMC zero-day is likely exploitable remotely, with potential for significant impact on confidentiality, integrity, and availability, warranting a high CVSS score.
Defender Context
Defenders must prioritize patching the newly identified high-impact vulnerabilities and focus on securing Cisco FMC instances against active exploitation. This trend highlights the ongoing arms race, with threat actors rapidly leveraging newly discovered zero-days.