BlackX UEFI bootkit exploits Baton Drop flaw to bypass Secure Boot
BleepingComputer
Why it matters
This page references a cybersecurity signal published by BleepingComputer. It helps CISOs, DPOs, IT leaders, infrastructure teams, SMBs and enterprise accounts track vulnerabilities, alerts and trends that may affect security, compliance or system resilience.
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This signal should be mapped against the application inventory, internet exposure and patch-management process. The key point is not only the existence of a vulnerability, but how quickly the organization can verify whether it is affected.
Watch points
Presence of the product or component in the environment
External exposure or administrator access
Patch, workaround and maintenance window
Recommended action
Check exposure against the inventory, qualify whether the component is present, then decide quickly between patching, workaround or reinforced monitoring.
Relevant for
CISOs, IT leaders, infrastructure teams, operations and application owners.
Source summary
A new UEFI bootkit named BlackX, deployed in an espionage campaign in early 2026, exploited the old Baton Drop vulnerability to bypass Secure Boot and load a malicious driver designed to interfere with security solutions from Kaspersky and Avast. [...]