CVE-2021-33120

microcode: Out of bounds read for some Intel Atom processors

Published Feb 9, 2022 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R) Processors may allow authenticated user to potentially enable information disclosure or cause denial of service via network access.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-19835 Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R) Processors may allow authenticated user to potentially enable information disclosure or cause denial of service via network access.
Ubuntu USN Ubuntu USN USN-5486-1 Intel Microcode vulnerabilities
Ubuntu USN Ubuntu USN USN-5535-1 Intel Microcode vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
intel
Published
Updated
May 5, 2025, 4:49 PM
Reserved
May 18, 2021, 12:00 AM
Status
Modified
Published
Feb 9, 2022, 11:15 PM
Modified
Jun 17, 2026, 3:54 AM
Severity
Moderate
Public date
Feb 8, 2022, 12:00 AM