CVE-2023-39284

low-risk

Published 2023-11-02

An issue was discovered in IhisiServicesSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. There are arbitrary calls to SetVariable with unsanitized arguments in the SMI handler.

Do I need to act?

0.04% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Insydeh2O

Affected Vendors

Insyde

References (4)

Vendor Advisory https://www.insyde.com/security-pledge

Vendor Advisory https://www.insyde.com/security-pledge/SA-2023056

Vendor Advisory https://www.insyde.com/security-pledge

Vendor Advisory https://www.insyde.com/security-pledge/SA-2023056

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low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal