CVE-2021-3897

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
lenovoCNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVEADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 57%
VendorProductVersion
ibmnextscale_fan_power_controller_firmware
𝑥
< 44a-3.70
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://support.lenovo.com/us/en/product_security/LEN-72615
https://support.lenovo.com/us/en/product_security/LEN-72615