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vulnerabilities
Zero-Day Vulnerability Exploited to Deploy Stealthy Overstep Backdoor
A zero-day vulnerability is being actively exploited in targeted attacks to deploy Overstep, a sophisticated backdoor with rootkit-level capabilities. This indicates adversaries are using unpatched critical flaws to establish persistent, privileged access on victim systems.
Why it matters: Organizations face immediate risk from zero-day exploits they cannot patch; security teams must assume advanced adversaries have rootkit-level persistence in their environments and should prioritize detection and containment of abnormal system-level activity.
- Source published
- First seen by Cybersecurity Tracker