Critical severity9.8NVD Advisory· Published Nov 3, 2021· Updated Jun 17, 2026

CVE-2020-5955

Description

An issue was discovered in Int15MicrocodeSmm in Insyde InsydeH2O before 2021-10-14 on Intel client chipsets. A caller may be able to escalate privileges.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Insyde/Insydeh2o Uefi BIOS
cpe:2.3:o:insyde:insydeh2o_uefi_bios:*:*:*:*:*:*:*:*
Range: <05.32.30.0001
Insyde/InsydeH2Odescription
Insyde/InsydeH2Ollm-fuzzy
Range: <2021-10-14

Patches

Vulnerability mechanics

References

security.netapp.com/advisory/ntap-20220223-0003/nvdThird Party Advisory
www.insyde.com/productsnvdProductVendor Advisory
www.insyde.com/security-pledge/SA-2021002nvdVendor Advisory

News mentions

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cvss	0.637
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000