CVE-2023-39283

An SMM memory corruption vulnerability in the SMM driver (SMRAM write) in CsmInt10HookSmm in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to send arbitrary data to SMM which could lead to privilege escalation.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 21%
VendorProductVersion
insydeinsydeh2o
5.0 ≤
𝑥
≤ 5.5
insydeinsydeh2o
5.5.05.53.22
insydeinsydeh2o
5.6
insydeinsydeh2o
5.6.05.60.22
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.insyde.com/security-pledge
https://www.insyde.com/security-pledge/SA-2023055
https://www.insyde.com/security-pledge
https://www.insyde.com/security-pledge/SA-2023055