CVE-2023-34195

HIGH EPSS 12.4%
Published Sep 18, 20232y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Sep 18, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

Description

An issue was discovered in SystemFirmwareManagementRuntimeDxe in Insyde InsydeH2O with kernel 5.0 through 5.5. The implementation of the GetImage method retrieves the value of a runtime variable named GetImageProgress, and later uses this value as a function pointer. This variable is wiped out by the same module near the end of the function. By setting this UEFI variable from the OS to point into custom code, an attacker could achieve arbitrary code execution in the DXE phase, before several chipset locks are set.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
12.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-94 Improper Control of Generation of Code (Code Injection) Injection

Affected Products 5

VendorProductVersionRange
insydeinsydeh2o*≥5.2  –  <5.2.05.28.22
insydeinsydeh2o*≥5.3  –  <5.3.05.37.22
insydeinsydeh2o*≥5.4  –  <5.4.05.45.22
insydeinsydeh2o*≥5.5  –  <5.5.05.53.22
insydeinsydeh2o*≥5.6  –  <5.6.05.60.22

References 2

  • insyde.com https://www.insyde.com/security-pledge
    Vendor Advisory
  • insyde.com https://www.insyde.com/security-pledge/SA-2023052
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.