CVE-2022-32477
7.0 · HIGHOverview
CVE-2022-32477 is a high-severity vulnerability affecting insyde insydeh2o. It was published on February 15, 2023 and has a CVSS 3.1 base score of 7.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the FvbServicesRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attack can be mitigated using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the firmware block services data to SMRAM before checking it.
Remediation
Check the references section for vendor advisories and patches from insyde. Update insydeh2o to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| insyde | insydeh2o | >= 5.0, < 5.2.05.27.27 | Affected |
Frequently Asked Questions
What is CVE-2022-32477?
CVE-2022-32477 is a high-severity vulnerability affecting insyde insydeh2o. It was published on February 15, 2023 and has a CVSS 3.1 base score of 7.0 (HIGH).
How severe is CVE-2022-32477?
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2022-32477?
Check the references section for vendor advisories and patches from insyde. Update insydeh2o to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-32477?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-32477 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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