by Kastro
Paper/Archive/CVE-2021-3897

CVE-2021-3897

Lenovo Fan Power Controller2 (FPC2) — An authentication bypass vulnerability was discovered in an internal service of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System…

EPSS 1%CVSS 9.8
critical.is priorityof 100
44
CVSS 9.8 (CNA, NVD agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 70.4.704 × 2014.1No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Fan Power Controller2 (FPC2)various–CNA
Lenovo System Management Module (SMM)various–CNA

Scores by source

lenovo (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refsupport.lenovo.com/us/en/product_security/LEN-72615