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H19WMIHandlerSmm: unvalidated memory boundary could result in arbitrary code execution.

Type: advisorySource: Official CVE List1 source record

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

Announced Source revision 1
Original source ↗

CVE-2026-12855

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-12855

InsydeH2O

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "Insyde Software",
    "product": "InsydeH2O",
    "versions": [
      {
        "status": "affected",
        "version": "See in the Solution"
      }
    ],
    "platforms": [
      "x86"
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-12855

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#5406 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement