CVE-2022-32471

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5

High · published February 15, 2023

CVSS v3.1
7.0
EPSS
0%
Percentile
2.6
In the wild
Unconfirmed
What it is

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. The IhisiDxe driver uses the command buffer to pass input and output data. By modifying the command buffer contents with DMA after the input parameters have been checked but before they are used, the IHISI SMM code may be convinced to modify SMRAM or OS, leading to possible data corruption or escalation of privileges.

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00133 · 2.6th percentile
Published
2023-02-15T00:00Z
EPSS history
Timeline
  • 15 FEB 00:00Z
    An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5
    cvelistv5