synced 11 MIN AGO
01 Record

CVE-2020-5955

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.

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 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.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.41% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 72.3% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-11-03 00:19Z4 YR AGO
Last updated
2024-08-04 08:47Z2 YR AGO
Reserved
2020-01-06
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
No CWE assigned
Data version
5.1
Document digest
de616cbc5778a7e0333ca31c6708a69065d34cbad20def63c75a319809546d71

05 Affected products

VendorProductVersionsPlatforms
insydeinsydeh2o_uefi_biosNot specified—
intelcannon_lakeNot specified—
intelcoffee_lakeNot specified—
intelcomet_lakeNot specified—
intelcomet_lake_rvpNot specified—
intelelkhart_lakeNot specified—
intelgrantley-epNot specified—
intelgreenlowNot specified—
intelgreenlow-rNot specified—
intelice_lakeNot specified—
intelkaby_lakeNot specified—
intelkaby_lake_mrdNot specified—
intelmehlowNot specified—
intelmehlow-rNot specified—
intelpurley-ep_refresh_neon_cityNot specified—
intelskylakeNot specified—
intelskylake_mrdNot specified—
inteltiger_lakeNot specified—
intelwhiskey_lakeNot specified—
intelwhiskey_lake_rvpNot specified—
intelwhitley-spNot specified—

06 References