What happened
An uncontrolled resource consumption vulnerability affects certain ASUS motherboards using Intel B460, B560, B660, B760, H410, H510, H610, H470, Z590, Z690, Z790, W480, W680 series chipsets. Exploitation requires physical access to internal expansion slots to install a specially crafted device and supporting software utility, and may lead to uncontrolled resource consumption that increases the risk of unauthorized direct memory access (DMA). Refer to the 'Security Update for UEFI firmware' section on the ASUS Security Advisory for more information.
Affected versions
B460 series: before 1805, 2002, 3002; before 2402, 2803; before 3810, 4501; before 1825, 3102; before 1805, 2002; before 3002; before 3810; before 1002, 2603, 3302; before 2015, 2701, 4501; before 1825, 2102, 3102 Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.