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CVE-2021-45970

HIGH
8.2

Description

An issue was discovered in IdeBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (the status code saved at the CommBuffer+4 location).

Details CVE

Score CVSS v3.18.2
SeveriteHIGH
Vecteur CVSSCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Vecteur d'attaqueLOCAL
ComplexiteLOW
Privileges requisHIGH
Interaction utilisateurNONE
Publie1/5/2022
Derniere modification11/4/2025
Sourcenvd
Observations honeypot0

Produits affectes

insyde:insydeh2o

Faiblesses (CWE)

CWE-787

Correlations IOC

Aucune correlation enregistree

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