CVE-2026-12855 - Vulnerability Details - OpenCVE

Unvalidated memory boundary could result in arbitrary code execution. The vulnerability exists in the code developed specifically for HP projects.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Insyde Software	Insydeh2o

No data.

No data.

References

Link	Providers
https://www.insyde.com/security-pledge/sa-2026009/
https://www.kb.cert.org/vuls/id/553437

History

Thu, 01 Oct 2026 16:30:00 +0000

Type	Values Removed	Values Added
References		https://www.kb.cert.org/vuls/id/553437

Thu, 10 Sep 2026 14:15:00 +0000

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

Thu, 10 Sep 2026 10:30:00 +0000

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

Wed, 09 Sep 2026 04:15:00 +0000

Type	Values Removed	Values Added
Description		Unvalidated memory boundary could result in arbitrary code execution. The vulnerability exists in the code developed specifically for HP projects.
Title		H19WMIHandlerSmm: unvalidated memory boundary could result in arbitrary code execution.
Weaknesses		CWE-20
References		https://www.insyde.com/security-pledge/sa-2026009/
Metrics		cvssV3_1 `{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: Insyde

Published: 2026-09-09T03:59:11.348Z

Updated: 2026-10-01T15:08:22.356Z

Reserved: 2026-06-22T05:49:02.853Z

Link: CVE-2026-12855

Vulnrichment

Updated: 2026-10-01T15:08:22.356Z

NVD

Status : Awaiting Analysis

Published: 2026-09-09T04:17:56.480

Modified: 2026-10-01T16:17:40.630

Link: CVE-2026-12855

Redhat

No data.

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