description: An authentication bypass vulnerability was discovered in an internal service of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware during an that could allow an unauthenticated attacker to execute commands on the SMM and FPC2. SMM2 is not affected.
problem types: CWE-288 Authentication Bypass Using an Alternate Path or Channel
affected:
{
product: Fan Power Controller2 (FPC2)
vendor: Lenovo
versions:
status: affected, version: various
}
{
product: Lenovo System Management Module (SMM)
vendor: Lenovo
versions:
status: affected, version: various
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.8
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
solutions: Upgrade to the firmware version (or newer) indicated for your model in the Product Impact section in LEN-72615.