CVE-2026-9805

LOW CVSS 3.1: 2.7 EPSS 0.12%
Updated Aug 31, 2026
Insyde Software
Parameter Value
CVSS 2.7 (LOW)
Type CWE-787 (Out-of-bounds Write)
Vendor Insyde Software
Public PoC No

SMM IHISI command handler, FMTSWriteUseIntelLib, for FMTS command 0x32, read and write data without checking buffer size and could cause buffer overflow.

Attack Parameters

Attack Vector
Physical
Requires physical access
Attack Complexity
High
Difficult to exploit
Privileges Required
High
Admin privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products

insyde software:insydeh2o