CVE-2022-35408

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

High · published September 22, 2022

CVSS v3.1
8.2
EPSS
0%
Percentile
29.4
In the wild
Unconfirmed
What it is

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver in UsbLegacyControlSmm leads to possible arbitrary code execution in SMM and escalation of privileges. An attacker could overwrite the function pointers in the EFI_BOOT_SERVICES table before the USB SMI handler triggers. (This is not exploitable from code running in the operating system.)

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00367 · 29.4th percentile
Published
2022-09-22T15:35Z
EPSS history
Timeline
  • 22 SEP 15:35Z
    An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5
    cvelistv5