CVE-2021-46791

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Published Jan 10, 2023 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Description

Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of service.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

AMD

3rd Gen EPYC

unaffected

Version	Status	Constraints
`various`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:amd:milanpi_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:amd:milanpi:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-33447	Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of service.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.186% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

History

Apr 9, 2025 3:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Amd Milanpi Milanpi Firmware

Weaknesses

CWE-787

Sources

CVE record Updated: Apr 9, 2025, 2:46 PM

Status: PUBLISHED
Assigner: AMD
Published: Jan 10, 2023, 8:56 PM
Updated: Apr 9, 2025, 2:46 PM
Reserved: May 4, 2022, 6:14 PM

View source JSON

Vulnrichment Updated: Aug 4, 2024, 5:17 AM

Updated: Aug 4, 2024, 5:17 AM

NVD Updated: Jun 17, 2026, 4:15 AM

Status: Modified
Published: Jan 11, 2023, 8:15 AM
Modified: Jun 17, 2026, 4:15 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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