Description
An issue was discovered in UsbCoreDxe in Insyde InsydeH2O with kernel 5.5 before 05.51.45, 5.4 before 05.43.45, 5.3 before 05.35.45, 5.2 before 05.26.45, 5.1 before 05.16.45, and 5.0 before 05.08.45. An SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.
Advisories 2
- WID-SEC-2022-2136 Lenovo BIOS: Mehrere Schwachstellen ermöglichen Privilegieneskalation BSI CERT-Bund (WID) · Oct 28, 2026
- SSA-306654 SSA-306654: Insyde BIOS Vulnerabilities in Siemens Industrial Products Siemens ProductCERT · Aug 11, 2026