---
id: CVE-2026-12855
title: Unvalidated memory boundary could result in arbitrary code execution
summary: >-
  Unvalidated memory boundary could result in arbitrary code execution. The
  vulnerability exists in the code developed specifically for HP projects.
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-20
vendor: Insyde Software
product: InsydeH2O
affected:
  - InsydeH2O See in the Solution
published: '2026-09-09'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:17:01.313'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-12855'
references:
  - url: 'https://www.insyde.com/security-pledge/sa-2026009/'
    label: 8338d8cb-57f7-4252-abc0-96fd13e98d21
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-09T15:54:34.074995Z'
epss: 0.00125
epssPercentile: 0.0185
ingestedAt: '2026-09-09T05:00:01.750Z'
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.