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CVE-2026-56129

5.5 · MEDIUM

Generic IO & Memory Access driver for PCs provided by TOSHIBA CORPORATION and Dynabook Inc.

Published Jun 25, 2026CWE-782EPSS 0.17%

Overview

CVE-2026-56129 is a medium-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Generic IO & Memory Access driver for PCs provided by TOSHIBA CORPORATION and Dynabook Inc. exposes its IOCTL with insufficient access control. A logged-in user with no administrative privilege may access physical memory.

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

Refcorporate.jp.sharp/info/product-security/advisory-list/2026-003/Refglobal.sharp/corporate/info/product-security/advisory-list/2026-003/Refjvn.jp/en/vu/JVNVU91051826/

How CyberStrike helps

Frequently asked questions

What is CVE-2026-56129?

CVE-2026-56129 is a medium-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-56129?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-56129?

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-2026-56129?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-56129 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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