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BlackX UEFI bootkit exploits Baton Drop flaw to bypass Secure Boot

Espionage actors weaponised the long-patched Baton Drop Secure Boot bypass into a full UEFI bootkit that disables select endpoint security products — a reminder that unpatched firmware remains a strategic blind spot.

Summary written by editorial AI · Source link below

Filed by BleepingComputer1 min readRead at source ↗

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. [...]

Editorial Analysis

Framed for the CISO & Security Leaders desk

Why it matters

A UEFI-level bootkit exploiting a known flaw to bypass Secure Boot represents a persistent, firmware-layer threat that can undermine endpoint security stacks entirely — critical for risk posture assessments.

What to do

Verify that all endpoints have the Baton Drop patch applied and that Secure Boot DBX revocation lists are current across the fleet.

Board brief

A new espionage bootkit highlights that unpatched firmware can render endpoint security investments ineffective.

Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.

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Read the full report at BleepingComputer

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