CVE-2021-46768

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

Description

Insufficient input validation in SEV firmware may allow an attacker to perform out-of-bounds memory reads within the ASP boot loader, potentially leading to a 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

2nd Gen EPYC

unaffected

Version	Status	Constraints
`various`	affected	—

AMD

3rd Gen EPYC

unaffected

Version	Status	Constraints
`various`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:amd:romepi_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:amd:romepi:-:*:*:*:*:*:*:*

Configuration 2 [-]

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

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-33424	Insufficient input validation in SEV firmware may allow an attacker to perform out-of-bounds memory reads within the ASP boot loader, potentially leading to a 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% (0.176% 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 Romepi Romepi Firmware

Weaknesses

CWE-125

Sources

CVE record Updated: Apr 9, 2025, 2:50 PM

Status: PUBLISHED
Assigner: AMD
Published: Jan 10, 2023, 8:56 PM
Updated: Apr 9, 2025, 2:50 PM
Reserved: Mar 31, 2022, 4:50 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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