CVE-2019-20908

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CVSS 3.1

6.7 medium

EPSS

<1%p42

Published

Jul 15, 2020 (Jul 15, 2020)

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.

Vendors: linux opensuse canonical
Products: linux kernel, leap, ubuntu linux
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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