CVE-2021-0147

Improper locking in the Power Management Controller (PMC) for some Intel Chipset firmware before versions pmc_fw_lbg_c1-21ww02a and…

4.4MediumCVSS base score
0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
NoKnown exploitednot in CISA's KEV catalog
NonePublic exploitsnone known yet

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.

Timeline

2020
22 Oct 2020
22 Oct 2020
ID reserved
By intel
2022
9 Feb 202216 months later
9 Feb 2022· 16 months later
Published
2025
5 May 20253 years later
5 May 2025· 3 years later
Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2021-0147, by who scored it
Scored by	CVSS	Score	Vector
CISA-ADPADP (enrichment)	3.1	Medium4.4	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified	3.1	Medium4.4	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS (exploitation in 30 days): 0.17% · top 94% of all CVEs (11 Nov 2026)
CISA SSVC: Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.

Affected products

Intel Chipset firmware
- affected see references

References1

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00470.html (opens in a new tab)x_refsource_MISCx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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Record last updated 5 May 2025, 16:59 UTC.