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CVE-2026-9805 FMTSWriteUseIntelLib: FMTS SMM IHISI Buffer Overflow

🗓️ 26 Aug 2026 01:00:25Reported by InsydeType 
cve
 cve
🔗 www.cve.org👁 8 Views

SMM IHISI buffer overflow in FMTSWriteUseIntelLib via FMTS command 0x32 without size checks.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-9805 FMTSWriteUseIntelLib: FMTS SMM IHISI Buffer Overflow
26 Aug 202601:00
cvelist
euvd
EUVD
EUVD-2026-66226
26 Aug 202601:00
euvd
ptsecurity
Positive Technologies
PT-2026-81920
26 Aug 202600:00
ptsecurity
[
  {
    "vendor": "Insyde Software",
    "product": "InsydeH2O",
    "platforms": [
      "x86"
    ],
    "modules": [
      "FMTSWriteUseIntelLib"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "See in the Solution"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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26 Aug 2026 01:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.12.7
8