Vulnerability Snapshot
This advisory is rated CRITICAL ā exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.
Affected technology: edge.
Executive Summary
Overview Vendor-signed UEFI Shell applications may allow an attacker to bypass Secure Boot protections by abusing commands such as mm (Memory Modify). On systems that trust the affected vendorās certificate or include the applicationās Authenticode hash in the UEFI Authorized Signature Database (DB), an attacker with sufficient access could use the applicationās direct memory-access capabilities to disable or circumvent Secure Boot enforcement and execute untrusted UEFI code. To mitigate this ri
Source
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Affected Products
Sources
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Frequently Asked Questions
What is "VU#738147: Vendor-signed UEFI Shell applications allow Secure Boot bypass"?
This is a critical-severity osint alert from CERT/CC Vulnerability Notes. It covers edge and was flagged for security teams to evaluate.
Am I affected?
Check whether your environment runs edge. If you operate any of those, treat yourself as in scope until you have evidence otherwise. A Vulnios scan will identify the exact assets carrying the affected version.
How urgent is the response?
Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.
How do I remediate?
Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.
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