Authentication Bypass in Lenovo Fan Power Controller and System Management Module
CVE-2021-3849

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-2021-3849?

An authentication bypass vulnerability has been identified in the web interface of the Lenovo Fan Power Controller 2 (FPC2) and Lenovo System Management Module (SMM) firmware. This flaw potentially allows an unauthenticated attacker to execute arbitrary commands on these systems, leading to unauthorized access and control. Notably, the SMM2 version remains unaffected.

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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

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