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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.30% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-288
- Affected
- lenovo/nextscale n1200 enclosure firmware · lenovo/thinkagile hx enclosure certified node firmware · lenovo/thinkagile vx enclosure firmware · lenovo/thinksystem d2 enclosure firmware · ibm/nextscale fan power controller firmware
- Source
- psirt@lenovo.com
References
- https://support.lenovo.com/us/en/product_security/LEN-72615Vendor Advisory
- https://support.lenovo.com/us/en/product_security/LEN-72615Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.