Vulnerability in IBM Nextscale Fan Power Controller
CVE-2021-3849
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (69.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.000
Affected products
- IBM Nextscale Fan Power Controller
- IBM Nextscale Fan Power Controller Firmware
- Lenovo Fan Power Controller2 (Fpc2) — versions various
- Lenovo System Management Module (Smm) — versions various
- Lenovo Nextscale N1200 Enclosure
- Lenovo Nextscale N1200 Enclosure Firmware
- Lenovo Thinkagile Hx Enclosure Certified Node
- Lenovo Thinkagile Hx Enclosure Certified Node Firmware
- Lenovo Thinkagile Vx Enclosure
- Lenovo Thinkagile Vx Enclosure Firmware
Weakness classification (CWE)
References
- support.lenovo.com/us/en/product_security/LEN-72615 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-3849?
- CVE-2021-3849 is a critical-severity vulnerability in IBM Nextscale Fan Power Controller, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2022-04-22.
- How severe is CVE-2021-3849?
- Critical severity. CVSS v3 base score is 9.8 out of 10.