PT-2022-23314 · Insyde · Insydeh2O

Published 2022-11-23 · Updated 2025-04-30 · CVE-2022-36337

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Insyde InsydeH2O with kernel 5.0 through 5.5

Description A stack buffer overflow vulnerability in the MebxConfiguration driver can lead to arbitrary code execution. This issue occurs when a UEFI variable under the OS is read by BIOS code, causing the overflow.

Recommendations For Insyde InsydeH2O with kernel 5.0 through 5.5, consider disabling the MebxConfiguration driver as a temporary workaround until a patch is available. Restrict access to UEFI variables under the OS to minimize the risk of exploitation.

Fix

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

CVE-2022-36337

Affected Products

Insydeh2O

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2022-36337 · Security Note
• https://insyde.com/security-pledge · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-36337 · Vendor Advisory
• https://insyde.com/security-pledge/SA-2022039 · Vendor Advisory
• https://t.me/cibsecurity/53398 · Telegram Post
• https://t.me/cvetracker/22664 · Telegram Post
• https://t.me/cvedetector/24060 · Telegram Post