Disclosure summary
Overview An Out-of-bounds Write vulnerability in the InsydeH2O IHISI software used by HP PC BIOS can allow a local attacker with OS kernel privileges to perform arbitrary physical
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
CERT Recently Published Vulnerability Notes · RSS-195e5e065f8a39275b51846d4670fc2fffd
Open original source · Updated Oct 01, 2026
VU#553437: InsydeH2O IHISI SMM is vulnerable to unsafe memory write operations
CVE mention in publisher metadata; check the original affected versions.
Original records & references
- NIST NVD record
- CVE Program record
- kb.cert.org — Publisher advisory
PUBLISHED 2026-10-01T10:33:19-04:00
MODIFIED 2026-10-01T10:33:19-04:00
INGESTED 2026-10-06T11:43:37-04:00