CVE-2022-35894

Name: CVE-2022-35894
Creator: NVD / NIST
Published: 2022-09-22T18:15:10.2+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2022-35894 is a medium-severity vulnerability rated 6/10 on the CVSS scale. An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The SMI handler for the FwBlockServiceSmm driver uses an untrusted pointer as the location to copy data to an attacker-specified buffer, leading to information disclosure.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The SMI handler for the FwBlockServiceSmm driver uses an untrusted pointer as the location to copy data to an attacker-specified buffer, leading to information disclosure.

Metrics

CVSS 3.1

6/10

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

EPSS Probability

0.31%

22.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Insyde	Insydeh2o	>= 5.0, < 05.09.37
Insyde	Insydeh2o	>= 5.1, < 5.17.37
Insyde	Insydeh2o	>= 5.2, < 05.27.29
Insyde	Insydeh2o	>= 5.3, < 05.36.29
Insyde	Insydeh2o	>= 5.4, < 05.44.29
Insyde	Insydeh2o	>= 5.5, < 05.52.29

References

https://binarly.io/advisories/BRLY-2022-018/index.htmlExploit, Third Party Advisory
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2022030Vendor Advisory
https://binarly.io/advisories/BRLY-2022-018/index.htmlExploit, Third Party Advisory
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2022030Vendor Advisory

Timeline

Published: Sep 22, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-35894?

How severe is CVE-2022-35894?

CVE-2022-35894 has a CVSS score of 6/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2022-35894?

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-2022-35894?

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

Scan your code now

Source: NVD / NIST