CVE-2019-20908

MediumCVSS 6.7/10Last modified Jun 17, 2026

Description

An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032.

Metrics

CVSS 3.1 6.7/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published
Jul 15, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

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CVE-2019-20908: Medium severity, CVSS 6.7 | Vulnix