CVE-2020-5956

7.5 highEPSS 0.8%

High (7.5) in insyde insydeh2o. EPSS 0.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2022-01-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

insyde:insydeh2o

References

https://security.netapp.com/advisory/ntap-20220223-0001/
https://www.insyde.com/security-pledge
https://security.netapp.com/advisory/ntap-20220223-0001/
https://www.insyde.com/security-pledge

Check your stack JSON