CVE-2020-5956

Description

An issue was discovered in SdLegacySmm in Insyde InsydeH2O with kernel 5.1 before 05.15.11, 5.2 before 05.25.11, 5.3 before 05.34.11, and 5.4 before 05.42.11. The software SMI handler allows untrusted external input because it does not verify CommBuffer.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.41%
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://security.netapp.com/advisory/ntap-20220223-0001/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-5956?
CVE-2020-5956 has been scored as a high severity vulnerability.
How to fix CVE-2020-5956?
To fix CVE-2020-5956, 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-2020-5956 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-5956 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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