High · published February 3, 2022
An issue was discovered in NvmExpressDxe in Insyde InsydeH2O with kernel 5.1 through 5.5. An SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
| Product | Versions | Fixed in |
|---|---|---|
| insyde/insydeh2o | ≥ 5.1, < 5.16.42 | 5.16.42 |
| insyde/insydeh2o | ≥ 5.2, < 5.26.42 | 5.26.42 |
| insyde/insydeh2o | ≥ 5.3, < 5.35.42 | 5.35.42 |
| insyde/insydeh2o | ≥ 5.4, < 5.43.42 | 5.43.42 |
| insyde/insydeh2o | ≥ 5.5, < 5.51.42 | 5.51.42 |