Description
An off-by-one error in AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with hypervisor access to corrupt the Reverse Map Table (RMP) table, potentially resulting in loss of guest memory integrity.
Published: 2026-11-10
Score: 4 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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Advisories

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History

Thu, 12 Nov 2026 19:45:00 +0000

Type Values Removed Values Added
Title AMD SEV Firmware Off‑by‑One Error Allowing Reverse Map Table Corruption

Thu, 12 Nov 2026 02:15:00 +0000

Type Values Removed Values Added
Title AMD SEV Firmware Off‑by‑One Error Allowing Reverse Map Table Corruption

Tue, 10 Nov 2026 22:15:00 +0000

Type Values Removed Values Added
Description An off-by-one error in AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with hypervisor access to corrupt the Reverse Map Table (RMP) table, potentially resulting in loss of guest memory integrity.
Weaknesses CWE-193
References
Metrics cvssV4_0

{'score': 4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: AMD

Published:

Updated: 2026-11-10T22:10:48.420Z

Reserved: 2026-04-14T17:04:40.591Z

Link: CVE-2026-40669

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-10T22:18:32.910

Modified: 2026-11-12T16:58:33.260

Link: CVE-2026-40669

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-12T19:30:07Z

Weaknesses