CVE-2022-36338 - CVE House
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Status published Unknown CVE-2022-36338

An issue was discovered in Insyde InsydeH2O with kernel 5.0...

Vulnerability Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver FwBlockServiceSmm, creating SMM, leads to arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with a pointer to malware, and then generate a software SMI.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2022-36337
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Affected Vendor

Affected Software

insydeh2o
Vulnerable Versions:
5.0

Timeline

Official Publish: September 23rd, 2022
Last Modified: May 5th, 2025
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.