CVE-2021-42059
MEDIUM
6.7
CVSS Score
Published: February 3, 2022 at 01:13 AM UTC
Updated: August 11, 2026 at 01:28 PM UTC
32 products affected across 2 vendorsInsydeH2OSIMATIC IPC477E FirmwareSIMATIC ITP1000 Firmware
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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.3%
Description
An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.08.41, Kernel 5.1 before 05.16.41, Kernel 5.2 before 05.26.41, Kernel 5.3 before 05.35.41, and Kernel 5.4 before 05.42.20. A stack-based buffer overflow leads toarbitrary code execution in UEFI DisplayTypeDxe DXE driver.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
5.0 ≤ v < 5.08.415.1 ≤ v < 5.16.415.2 ≤ v < 5.26.415.3 ≤ v < 5.35.415.4 ≤ v < 5.42.20
Affected range stops below 5.08.41, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.16.41, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.26.41, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.35.41, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.42.20, so it looks safe — our inference, not a vendor statement
v < V22.01.10
Affected range stops below V22.01.10, so it looks safe — our inference, not a vendor statement
siemens-simatic-field-pg-m5 (same device)
v < V26.01.13
Affected range stops below V26.01.13, so it looks safe — our inference, not a vendor statement
siemens-simatic-field-pg-m6 (same device)
v < V28.01.04
Affected range stops below V28.01.04, so it looks safe — our inference, not a vendor statement
siemens-simatic-ipc277g (same device)
v < V28.01.04
Affected range stops below V28.01.04, so it looks safe — our inference, not a vendor statement
siemens-simatic-ipc327g (same device)
v < V28.01.04
Affected range stops below V28.01.04, so it looks safe — our inference, not a vendor statement
siemens-simatic-ipc377g (same device)
v < V21.01.17
Affected range stops below V21.01.17, so it looks safe — our inference, not a vendor statement
siemens-simatic-ipc477e (same device)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (6)
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfx_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20220216-0008/x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.insyde.com/security-pledge/SA-2022006Source: af854a3a-2127-422b-91ae-364da2661108
https://www.kb.cert.org/vuls/id/796611Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-306654.htmlCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-787
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