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CVE-2022-32955

7.0 · HIGH

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5.

Published Feb 15, 2023CWE-367EPSS 0.13%

Overview

CVE-2022-32955 is a high-severity vulnerability. 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 NvmExpressDxe 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 by using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the link data to SMRAM before checking it and verifying that all pointers are within the buffer.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refwww.insyde.com/security-pledgeRefwww.insyde.com/security-pledge/SA-2023015Refwww.insyde.com/security-pledgeRefwww.insyde.com/security-pledge/SA-2023015

How CyberStrike helps

Frequently asked questions

What is CVE-2022-32955?

CVE-2022-32955 is a high-severity vulnerability. It was published on February 15, 2023 and has a CVSS 3.1 base score of 7.0 (HIGH).

How severe is CVE-2022-32955?

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-2022-32955?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2022-32955?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-32955 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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