CVE-2023-28468

MEDIUM

Insyde Kernel 5.0-5.5 - Incorrect Authorization in FvbServicesRuntimeDxe SMM Module

Title source: llm

Description

An issue was discovered in FvbServicesRuntimeDxe in Insyde InsydeH2O with kernel 5.0 through 5.5. The FvbServicesRuntimeDxe SMM module exposes an SMI handler that allows an attacker to interact with the SPI flash at run-time from the OS.

References (2)

Core 2

Core References

Not Applicable

https://www.insyde.com/security-pledge

Vendor Advisory

https://www.insyde.com/security-pledge/SA-2023039

Scores

CVSS v3 6.5

EPSS 0.0015

EPSS Percentile 4.9%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-863

Status published

Products (1)

insyde/kernel 5.0 - 5.5

Published Aug 03, 2023

Tracked Since Feb 18, 2026