🛡️ CVE-2022-35897
🟡 CVSS 6.8 — Medium ✅ No Known Exploit CWE-787 NVD
6.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An stack buffer overflow vulnerability leads to arbitrary code execution issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. If the attacker modifies specific UEFI variables, it can cause a stack overflow, leading to arbitrary code execution. The specific variables are normally locked (read-only) at the OS level and therefore an attack would require direct SPI modification. If an attacker can change the values of at least two variables out of three (SecureBootEnforce, SecureBoot, RestoreBootSettings), it is possible to execute arbitrary code.

Details

Severity MEDIUM
CVSS Score 6.8
CVSS Vector CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-787
Public Exploit ✅ No
Source NVD
Published 2022-11-21
Updated 2026-06-08
Modified 2025-04-30
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel 5.0 5.5

Similar Threats

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