What’s Vulnerable › Vulnerabilities

CVE-2021-0147

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-02-09 · updated 2026-06-17
• Weakness: CWE-667

Description

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; before pmc_fw_lbg_b0-21ww02a — fixed in pmc_fw_lbg_b0-21ww02a, pmc_fw_lbg_c1-21ww02a

How to fix

Upgrade to a fixed version: Intel Power Management Controller pmc_fw_lbg_b0-21ww02a, pmc_fw_lbg_c1-21ww02a. Check the vendor advisory for mitigations.

References

• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00470.html
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00470.html

Get alerted when CVE-2021-0147 or the next vulnerability affects your stack