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New CrowdStrike 'FalconFlank' zero-day grants SYSTEM privileges

BleepingComputer·September 4, 2026·1 min read
New CrowdStrike 'FalconFlank' zero-day grants SYSTEM privileges

An anonymous researcher known as "Nightmare Eclipse" released a CrowdStrike Falcon zero-day exploit named "FalconFlank" that enables privilege escalation on fully patched Windows systems. The exploit targets a vulnerability in the security software, potentially allowing attackers to gain SYSTEM-level access. CrowdStrike has not yet issued a patch.

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