CVE-2022-35893

high

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM memory corruption vulnerability in the FvbServicesRuntimeDxe driver allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

References

https://www.insyde.com/security-pledge/SA-2022035

https://www.insyde.com/security-pledge

https://binarly.io/advisories/BRLY-2022-026/index.html

Details

Source: Mitre, NVD

Published: 2022-09-23

Updated: 2023-08-08

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:L/AC:L/Au:M/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 8.2

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Severity: High