Threat Pulse 62High
BlackX UEFI bootkit bypasses Secure Boot even after patch
Severity 6ActivereportedConsumer devicesGovernment

Bootkit works on Windows systems missing the required DBX revocations even with the patch installed. Who is affected: Windows PCs without updated Secure Boot revocations.

What to do: Apply Microsoft Secure Boot revocation (DBX) updates, not just the patch. BleepingComputer Oct 24: BlackX exploits the Baton Drop flaw to bypass Secure Boot; campaign linked to APT41.

· 12 days ago · Windows PCs without updated Secure Boot revocations · bleepingcomputer.com
Sourcesbleepingcomputer.com
On X
@TheHackersNewsverifiedOct 23, 18:51 UTC

‼️ Patched, but still exploitable. The new BlackX UEFI bootkit bypasses Secure Boot on Windows systems missing required revocations, even after the patch is installed. Attackers used it in breaches of Central Asian diplomatic ne

Open on X
@BleepinComputerverifiedOct 24, 14:18 UTC

BlackX UEFI bootkit exploits Baton Drop flaw to bypass Secure Boot

Open on X
Why this score

Rubric score (impact, exploitability, critical sector, unresolved); the other session's Grok score was 6, capped by the verified-lane rules at 6.

Time of the earliest verified post; the event itself may be earlier that day.

Back to the board

Updated Nov 5, 01:43 UTC. Refreshes on its own.

Add a threat

Paste a link to an advisory, an article or an X post. A person reads every submission before it shows; nothing posts on its own.

Share

The picture people see when the link is posted
Post on XSave picture

This picture is what X, iMessage, Slack and Facebook show under the link. It is drawn fresh from the live board: the board and chart pictures update every 10 minutes, an event picture follows that event.