CVE-2022-34325

Name: CVE-2022-34325
Creator: NVD / NIST
Published: 2022-11-14T23:15:11.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.13%

Last modified Jun 17, 2026

CVE-2022-34325 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. DMA transactions which are targeted at input buffers used for the StorageSecurityCommandDxe software SMI handler could cause SMRAM corruption through a TOCTOU attack. DMA transactions which are targeted at input buffers used for the software SMI handler used by the StorageSecurityCommandDxe driver could cause SMRAM corruption. EPSS estimates a 0.13% chance of exploitation in the next 30 days.

Description

DMA transactions which are targeted at input buffers used for the StorageSecurityCommandDxe software SMI handler could cause SMRAM corruption through a TOCTOU attack. DMA transactions which are targeted at input buffers used for the software SMI handler used by the StorageSecurityCommandDxe driver could cause SMRAM corruption. This issue was discovered by Insyde engineering based on the general description provided by

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.13%

3.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Insyde	Insydeh2o	>= 5.3, < 05.36.23
Insyde	Insydeh2o	>= 5.2, < 05.27.23
Insyde	Insydeh2o	>= 5.4, < 05.44.23
Insyde	Insydeh2o	>= 5.5, < 05.52.23

References

https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2022057Vendor Advisory
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2022057Vendor Advisory

Timeline

Published: Nov 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-34325?

How severe is CVE-2022-34325?

CVE-2022-34325 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.

How do I fix CVE-2022-34325?

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-2022-34325?

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

Scan your code now

Source: NVD / NIST