Authentication Bypass in Lenovo Fan Power Controller and System Management Module Firmware
CVE-2021-3897

9.8CRITICAL

Key Information:

Vendor

Lenovo
Status
Fan Power Controller2 (fpc2)
Lenovo System Management Module (smm)
Vendor
CVE Published:
22 April 2022

What is CVE-2021-3897?

An authentication bypass vulnerability has been identified in the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware. This flaw allows unauthenticated attackers to execute arbitrary commands on the affected devices, potentially compromising the system's integrity and security. It is critical for users of these products to apply necessary updates to mitigate risks associated with this vulnerability.

Affected Version(s)

Fan Power Controller2 (FPC2) various

Lenovo System Management Module (SMM) various

References

https://support.lenovo.com/us/en/product_security/LEN-72615
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.