CVE-2021-3849
9.8 · CRITICALOverview
CVE-2021-3849 is a critical-severity vulnerability affecting lenovo nextscale_n1200_enclosure_firmware. It was published on April 22, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An authentication bypass vulnerability was discovered in the web interface of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware that could allow an unauthenticated attacker to execute commands on the SMM and FPC2. SMM2 is not affected.
Remediation
Check the references section for vendor advisories and patches from lenovo. Update nextscale_n1200_enclosure_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| lenovo | nextscale_n1200_enclosure_firmware | >= 0, < fhet50b-2.90 | Affected |
| lenovo | thinkagile_hx_enclosure_certified_node_firmware | >= 0, < tesm28b-1.21 | Affected |
| lenovo | thinkagile_vx_enclosure_firmware | >= 0, < tesm28b-1.21 | Affected |
| lenovo | thinksystem_d2_enclosure_firmware | >= 0, < tesm28b-1.21 | Affected |
| ibm | nextscale_fan_power_controller_firmware | >= 0, < 44a-3.70 | Affected |
Frequently Asked Questions
What is CVE-2021-3849?
CVE-2021-3849 is a critical-severity vulnerability affecting lenovo nextscale_n1200_enclosure_firmware. It was published on April 22, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2021-3849?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-3849?
Check the references section for vendor advisories and patches from lenovo. Update nextscale_n1200_enclosure_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-3849?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-3849 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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