CVE-2021-3971
Assigner: lenovo
Published: 2022-04-22T20:30:38
State: PUBLISHED
affected: product: Notebook BIOS
vendor: Lenovo
versions: status: affected
version: various
credits: value:  Lenovo thanks Martin Smolár from ESET for reporting this issue.
descriptions: value: A potential vulnerability by a driver used during older manufacturing processes on some consumer Lenovo Notebook devices that was mistakenly included in the BIOS image could allow an attacker with elevated privileges to modify firmware protection region by modifying an NVRAM variable.
metrics: cvssV3_1: attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 6.7
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
version: 3.1
problemTypes: descriptions: cweId: CWE-489
description: CWE-489 Leftover Debug Code
type: CWE
solutions: value: Update system firmware to the version (or newer) indicated for your model in the Product Impact section of LEN-73440.
source: advisory: LEN-73440
discovery: UNKNOWN
x_generator: engine: Vulnogram 0.0.9