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CVE-2026-12855 H19WMIHandlerSmm: unvalidated memory boundary could result in arbitrary code execution.

🗓️ 09 Sep 2026 03:59:11Reported by InsydeType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

Unvalidated memory boundary in H19WMIHandlerSmm enabling arbitrary code execution.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-12855
9 Sep 202604:30
circl
cve
CVE
CVE-2026-12855
9 Sep 202603:59
cve
euvd
EUVD
EUVD-2026-74615
9 Sep 202603:59
euvd
nvd
NVD
CVE-2026-12855
9 Sep 202604:17
nvd
ptsecurity
Positive Technologies
PT-2026-88805
9 Sep 202600:00
ptsecurity
[
  {
    "vendor": "Insyde Software",
    "product": "InsydeH2O",
    "platforms": [
      "x86"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "See in the Solution"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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09 Sep 2026 03:59Current
CVSS 3.18.2
EPSS0.00125
27