{"id":"CVE-2021-0147","aliases":["EUVD-2021-2766","GHSA-hfj6-rq3w-f48r"],"status":"published","title":"Improper locking in the Power Management Controller (PMC) for some Intel Chipset firmware before...","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.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00166,"percentile":0.05933,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-662","CWE-667"],"published":"2022-02-09T22:04:16Z","modified":"2026-06-17T03:29:18Z","products":[{"vendor":"intel","product":"intel chipset firmware"},{"vendor":"intel","product":"power_management_controller"}],"references":[{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00470.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0147"},{"url":"https://github.com/advisories/GHSA-hfj6-rq3w-f48r"}],"sources":{"cve":[{"id":"CVE-2021-0147","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.","status":"published","published":"2022-02-09T22:04:16Z","modified":"2025-05-05T16:59:56.808Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-667"],"updated_at":"2026-11-02T14:33:10.887946Z"}],"euvd":[{"id":"EUVD-2021-2766","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.","status":"published","published":"2022-02-09T22:04:16Z","modified":"2025-05-05T16:59:56Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T20:32:55.636374Z"}],"ghsa":[{"id":"GHSA-hfj6-rq3w-f48r","title":"Improper locking in the Power Management Controller (PMC) for some Intel Chipset firmware before...","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.","status":"published","published":"2022-02-11T00:01:00Z","modified":"2025-05-05T18:31:22Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-662","CWE-667"],"updated_at":"2026-11-02T15:02:06.913728Z"}],"nvd":[{"id":"CVE-2021-0147","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.","status":"published","published":"2022-02-09T23:15:13.897Z","modified":"2026-06-17T03:29:18.97Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-667"],"updated_at":"2026-11-02T14:07:04.6896Z"}]}}