CVE-2021-46778

En bref

Sévérité
Non disponible
EPSS
EPSS 0.24 % · centile 15 (2026-10-28)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
AMD
Statut NVD
Modified

Description

Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.6CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:NNVD · nvd@nist.gov (Primary)

Faiblesses (CWE)

Références européennes

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
AMD · AMD Processorsaffected Processor Some AMD Processors

Références

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD