CVE-2021-0147: Intel Power Management Controller

Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper locking in the Power Management Controller (PMC) for some Intel Chipset firmware before versions pmc_fw_lbg_c1-21ww02a and pmc_fw_lbg_b0-21ww02a may allow a privileged user to potentially enable denial of service via local access.

Affected products

• Intel Power Management Controller: before pmc_fw_lbg_c1-21ww02a (fixed in pmc_fw_lbg_c1-21ww02a); before pmc_fw_lbg_b0-21ww02a (fixed in pmc_fw_lbg_b0-21ww02a)

Published 2022-02-09. Last modified 2026-06-17.