Vulnerability in Horizondatasys Uefi Bootloader
CVE-2022-34302
A flaw was found in New Horizon Datasys bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use with this bootloader. Access to the EFI System Partition is required for booting using external media.
EPSS: 0.010 (60.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Horizondatasys Uefi_bootloader
- Microsoft Windows_10 — versions 20h2, 21h1, 21h2
- Microsoft Windows_11
- Microsoft Windows_8.1
- Microsoft Windows_rt_8.1
- Microsoft Windows_server_2012 — versions r2
- Microsoft Windows_server_2016 — versions 20h2
- Microsoft Windows_server_2019
- Microsoft Windows_server_2022
- Redhat Enterprise_linux — versions 7.0, 8.0, 9.0
References
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (US Government Resource, Third Party Advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2022-34302?
- CVE-2022-34302 is a medium-severity vulnerability in Horizondatasys Uefi Bootloader. CVSS score: 6.7/10. Published 2022-08-26.
- How severe is CVE-2022-34302?
- Medium severity. CVSS v3 base score is 6.7 out of 10.