CVE-2023-28468

Name: CVE-2023-28468
Creator: NVD / NIST
Published: 2023-08-03T15:15:20.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.15%

Last modified Jun 17, 2026

CVE-2023-28468 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.15% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.15%

4.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Insyde	Kernel	>= 5.0, <= 5.5

References

https://www.insyde.com/security-pledgeNot Applicable
https://www.insyde.com/security-pledge/SA-2023039Vendor Advisory
https://www.insyde.com/security-pledgeNot Applicable
https://www.insyde.com/security-pledge/SA-2023039Vendor Advisory

Timeline

Published: Aug 3, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-28468?

How severe is CVE-2023-28468?

CVE-2023-28468 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.15% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28468?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-28468?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST