CVE-2020-5956
HIGH
7.5
CVSS Score
Published: January 5, 2022 at 10:55 PM UTC
Updated: June 17, 2026 at 03:22 AM UTC
1 product affected across 1 vendorInsydeH2O
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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
5.1 ≤ v < 05.15.115.2 ≤ v < 5.25.115.3 ≤ v < 05.34.115.4 ≤ v < 05.42.11
Affected range stops below 05.15.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 05.34.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 05.42.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.25.11, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20220223-0001/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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