CVE-2022-35894

Public Exploit

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.

Category

6.0
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory insyde.com Vendor Advisory insyde.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.insyde.com/security-pledge vendor advisory
https://binarly.io/advisories/BRLY-2022-018/index.html third party advisory exploit
https://www.insyde.com/security-pledge/SA-2022030 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-35894?
CVE-2022-35894 has been scored as a medium severity vulnerability.
How to fix CVE-2022-35894?
To fix CVE-2022-35894, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-35894 being actively exploited in the wild?
It is possible that CVE-2022-35894 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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