CVE-2022-35408

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

22/09/2022

Last modified:

27/05/2025

Description

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.)

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.20 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.20

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:insyde:insydeh2o::::::::	5.1 (including)	5.17.38 (excluding)
cpe:2.3:a:insyde:insydeh2o::::::::	5.2 (including)	05.27.28 (excluding)
cpe:2.3:a:insyde:insydeh2o::::::::	5.3 (including)	05.36.28 (excluding)
cpe:2.3:a:insyde:insydeh2o::::::::	5.4 (including)	05.44.28 (excluding)
cpe:2.3:a:insyde:insydeh2o::::::::	5.5 (including)	05.52.28 (excluding)
cpe:2.3:a:insyde:insydeh2o::::::::	5.0 (including)	05.09.38 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-35408

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools