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CVE-2026-56129

MEDIUM
5.5
CVSS Score
Published: June 25, 2026 at 07:03 AM UTC
Updated: June 27, 2026 at 11:42 AM UTC
2 products affected across 2 vendorsGeneric IO & Memory Access DriverGeneric IO & Memory Access Driver

Using Generic IO & Memory Access driver by Dynabook Inc.?

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: cverecord
https://global.sharp/corporate/info/product-security/advisory-list/2026-003/
Source: cverecord
https://corporate.jp.sharp/info/product-security/advisory-list/2026-003/
Source: cverecord
https://jvn.jp/en/vu/JVNVU91051826/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMjpcert
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-782

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