description: A vulnerability was reported in various BIOS versions of older ThinkPad systems that could allow a user with administrative privileges or physical access the ability to update the Embedded Controller with unsigned firmware.
problem types: Privilege escalation
affected:
{
product: BIOS
vendor: Lenovo
versions:
status: affected, version: various
}
metrics:
cvssV3_0: [
attackComplexity: HIGH
attackVector: PHYSICAL
availabilityImpact: HIGH
baseScore: 6.4
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.0
]
solutions: Update to the version of BIOS (or later) described for your system in the Product Impact section of LEN-27764.