CVE-2023-27373

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. Due to insufficient input validation, an attacker can tamper with a runtime-accessible EFI variable to cause a dynamic BAR setting to overlap SMRAM.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Vendor Advisory insyde.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.insyde.com/security-pledge/SA-2023035 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-27373?
CVE-2023-27373 has been scored as a medium severity vulnerability.
How to fix CVE-2023-27373?
To fix CVE-2023-27373, 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-2023-27373 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-27373 is being actively exploited. 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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