Description
Improper input validation was discovered in UsbCoreDxe in Insyde InsydeH2O kernel 5.4 before 05.47.01, 5.5 before 05.55.01, 5.6 before 05.62.01, and 5.7 before 05.71.01. The SMM module has an SMM call out vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.
Advisories 1
- WID-SEC-2025-1300 Insyde UEFI Firmware: Mehrere Schwachstellen ermöglichen Codeausführung BSI CERT-Bund (WID) · Oct 26, 2025