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CVE-2021-0147

MEDIUM
4.4
CVSS Score
Published: February 9, 2022 at 10:04 PM UTC
Updated: June 17, 2026 at 03:29 AM UTC
1 product affected across 1 vendorPower Management Controller

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Power Management Controller· Intel
95%
v < pmc_fw_lbg_b0-21ww02av < pmc_fw_lbg_c1-21ww02a
Affected range stops below pmc_fw_lbg_b0-21ww02a, so it looks safe — our inference, not a vendor statement
Affected range stops below pmc_fw_lbg_c1-21ww02a, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00470.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.4MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-667

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