CVE-2021-26409

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Published Jan 10, 2023 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Description

Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory integrity.

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

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-13215	Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory integrity.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

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% (0.194% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

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': 'total'}, 'version': '2.0.3'}`

Subscriptions

Amd Milanpi Milanpi Firmware

Weaknesses

CWE-120

Sources

CVE record Updated: Apr 9, 2025, 2:52 PM

Status: PUBLISHED
Assigner: AMD
Published: Jan 10, 2023, 8:56 PM
Updated: Apr 9, 2025, 2:52 PM
Reserved: Jan 29, 2021, 9:24 PM

View source JSON

Vulnrichment Updated: Aug 3, 2024, 8:26 PM

Updated: Aug 3, 2024, 8:26 PM

NVD Updated: Jun 17, 2026, 3:43 AM

Status: Modified
Published: Jan 11, 2023, 8:15 AM
Modified: Jun 17, 2026, 3:43 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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