Read the docs
TI-2021-00090 Aliases CVE-2021-0147GHSA-hfj6-rq3w-f48r

Improper locking in the Power Management Controller (PMC) for some Intel Chipset firmware…

Priority LOW 20CWE-667Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-667 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00166 5th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Intel Chipset firmwaresee references—No fix listedCNA
  • Intel Chipset firmware Vendor— Affected see references Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:intel:power_management_controller:*:*:*:*:*:*:*:*before pmc_fw_lbg_c1-21ww02a; before pmc_fw_lbg_b0-21ww02aVulnerableIntel
  • cpe:2.3:a:intel:power_management_controller:*:*:*:*:*:*:*:* Versions before pmc_fw_lbg_c1-21ww02a; before pmc_fw_lbg_b0-21ww02a Vulnerable ·Intel

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-0147
  2. 2026-10-03 Alias added: GHSA-hfj6-rq3w-f48r

References

Advisory 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences