VULNERABILITY INTELLIGENCE

CVE-2021-46744

CVSS score6.5 MEDIUM

EPSS probability0.33%

CISA KEVNot currently listed

Published2022-05-11

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Description

An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.

Weakness classification

nvd@nist.gov: CWE-203

Primary references

psirt@amd.com — Mailing List, Third Party Advisory
psirt@amd.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory