CVE-2021-42554
High
Description
An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
SeverityHigh
CVSS8.2
Exploit probability—
ProductInsydeh2o
PublishedFeb 3, 2022
First seenFeb 3, 2022
How to fix
Update
- insyde insydeh2o5.08.42, 5.16.42, 5.26.42, 5.35.42, 5.42.51, 5.50.51 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde insydeh2o | 5.0 ≤ v < 5.08.42, 5.1 ≤ v < 5.16.42, 5.2 ≤ v < 5.26.42, 5.3 ≤ v < 5.35.42, 5.4 ≤ v < 5.42.51, 5.5 ≤ v < 5.50.51 | 5.08.42, 5.16.42, 5.26.42, 5.35.42, 5.42.51, 5.50.51 |
| siemens simatic_field_pg_m5_firmware | No range specified | — |
| siemens simatic_field_pg_m6_firmware | No range specified | — |
| siemens simatic_ipc127e_firmware | No range specified | — |
| siemens simatic_ipc227g_firmware | No range specified | — |
| siemens simatic_ipc277g_firmware | No range specified | — |
| siemens simatic_ipc327g_firmware | No range specified | — |
| siemens simatic_ipc377g_firmware | No range specified | — |
| siemens simatic_ipc427e_firmware | No range specified | — |
| siemens simatic_ipc477e_firmware | No range specified | — |
| siemens simatic_ipc627e_firmware | No range specified | — |
| siemens simatic_ipc647e_firmware | No range specified | — |
| siemens simatic_ipc677e_firmware | No range specified | — |
| siemens simatic_ipc847e_firmware | No range specified | — |
| siemens simatic_itp1000_firmware | No range specified | — |
| siemens ruggedcom_ape1808_firmware | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.