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Generic IO & Memory Access driver for TOSHIBA and Dynabook PCs exposes its IOCTL with insufficient access control

unknownCVE-2026-56129
Generic IO & Memory Access driver for PCs provided by TOSHIBA CORPORATION and Dynabook Inc. exposes its IOCTL with insufficient access control.

CSIRTS triage

What
The driver exposes its IOCTL with insufficient access control.
Who is affected
Users of TOSHIBA and Dynabook PCs utilizing the driver.
Urgency
Remediation is necessary, but the severity is currently unknown.
Action
Users should review the advisory for potential mitigations.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
JVN (Japan Vulnerability Notes) (JP · national-cert · site)
Severity
unknown
Published
2026-06-25
Exploitation
Not in CISA KEV at last sync

Original advisory: https://jvn.jp/en/vu/JVNVU91051826/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-56129coverage & exploitation statusNVD · CVE.org

More from JVN (Japan Vulnerability Notes)