InsydeH2O

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First seenOct 1, 2026
Last mentioned29d ago

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VU#553437: InsydeH2O IHISI SMM is vulnerable to unsafe memory write operations

CERT warns an InsydeH2O SMM flaw in HP BIOS lets kernel attackers write arbitrary memory, including SMRAM.

CERT/CC Vulnerability NotesOct 1, 14:33 UTC · 29d agoVulnerabilityCVE-2026-128556 · 3 reads

Related CVEs

by mentions

CVE-2026-12855<1%8.2
Memory Boundary Flaw Enables Local Code Execution in HP Project-Specific Code
published Sep 9, 2026HP project-specific code (specific affected products/lines not enumerated in the CVE data)

Appears with

Insydevendor · 1
HP PC BIOSproduct · 1
HPvendor · 1
CERT/CCorganization · 1

Entities are extracted by the model from each article. First seen Oct 1, 2026, last mentioned 29d ago. Watching keeps it in this browser only (no account); the watchlist page and dashboard alerts use it.