CVE-2026-9805 - Vulnerability Details - OpenCVE

SMM IHISI command handler, FMTSWriteUseIntelLib, for FMTS command 0x32, read and write data without checking buffer size and could cause buffer overflow.

No CVSS v4.0

Attack Vector Physical

Attack Complexity High

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Insyde	Insydeh2o

No data.

No data.

References

Link	Providers
https://www.insyde.com/security-pledge/sa-2026006/

History

Fri, 28 Aug 2026 21:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Insyde Insyde insydeh2o
Vendors & Products		Insyde Insyde insydeh2o

Wed, 26 Aug 2026 18:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 26 Aug 2026 01:15:00 +0000

Type	Values Removed	Values Added
Description		SMM IHISI command handler, FMTSWriteUseIntelLib, for FMTS command 0x32, read and write data without checking buffer size and could cause buffer overflow.
Title		FMTSWriteUseIntelLib: FMTS SMM IHISI Buffer Overflow
Weaknesses		CWE-787
References		https://www.insyde.com/security-pledge/sa-2026006/
Metrics		cvssV3_1 `{'score': 2.7, 'vector': 'CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L'}`

MITRE

Status: PUBLISHED

Assigner: Insyde

Published: 2026-08-26T01:00:25.855Z

Updated: 2026-08-26T15:29:45.529Z

Reserved: 2026-05-28T06:24:59.358Z

Link: CVE-2026-9805

Vulnrichment

Updated: 2026-08-26T15:29:37.172Z

NVD

Status : Awaiting Analysis

Published: 2026-08-26T05:18:28.547

Modified: 2026-08-31T19:27:23.020

Link: CVE-2026-9805

Redhat

No data.

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