CVE-2026-96582

The USBX HID Report Descriptor Parser is vulnerable to a heap out-of-bounds read during ordinary enumeration. The root cause is a check-after-use flaw where the host validates that an item fits in the descriptor only after advancing past the header and parsing the payload. Because the analysis fa...

CVE-2026-96582 Out-of-bounds Read via Check-after-use in the USBX HID Report Descriptor Parser

A HID report descriptor is a sequence of items, each declaring in its header how many data bytes follow. The USBX host walks that sequence by advancing over each header and parsing the data behind it. The walk checked that an item fitted in the descriptor only after it had advanced past the heade...