CVE-2026-96582 Out-of-bounds Read via Check-after-use in the USBX HID Report Descriptor Parser
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-96582?
CVE-2026-96582 is a medium-severity vulnerability in Eclipse ThreadX - USBX, published on 20 Oct 2026.
Official description
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 header and parsed the payload, and the item analysis it relied on never measured the declared sizes against the bytes actually received. A HID peripheral returning a short report descriptor therefore drove a heap out-of-bounds read during ordinary enumeration.
Which versions are affected by CVE-2026-96582?
How do I fix CVE-2026-96582?
No fix has been published for CVE-2026-96582 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-96582 being exploited?
There is no known exploitation of CVE-2026-96582 in the wild and no public exploit code.
Sources
Also known as GHSA-f2fv-fqrc-h8jr.