Security readout for executives and security teams
Plain-English summary
This is a firmware-level flaw in InsydeH2O that could let an attacker gain control inside System Management Mode, a highly privileged CPU execution environment. That can weaken trust in the device below the operating system. The bundle does not show active exploitation.
Executive priority
Prioritize confirmed affected platforms because SMM compromise can bypass normal operating-system security controls. Since active exploitation is not cited, rank remediation by vendor confirmation, asset criticality, and update availability.
Technical view
CVE-2021-42060 is an Int15ServiceSmm SMM callout vulnerability in InsydeH2O Kernel 5.0, 5.1, 5.2, and 5.3 version ranges. Successful exploitation could hijack SMM execution flow and escalate privileges to SMM.
Likely exposure
Exposure is likely limited to systems using the listed InsydeH2O kernel versions or downstream products identified by OEM advisories. The provided data does not name a complete device list; NetApp and Siemens references indicate downstream vendor impact assessment.
Exploitation context
The source bundle states privilege escalation to SMM is possible. It does not provide CVSS, CWE, proof-of-concept status, or evidence of exploitation in the wild. CISA KEV status is false in the bundle.
Researcher notes
The key technical issue is an SMM callout in Int15ServiceSmm. Source evidence is incomplete on exploit prerequisites and product mapping, so validation should focus on firmware lineage and vendor advisory correlation rather than assumed device impact.
Mitigation direction
- Check Insyde SA-2022007 and OEM firmware advisories for affected models.
- Apply vendor-provided BIOS or firmware updates where available.
- Prioritize assets covered by NetApp, Siemens, or relevant OEM advisories.
- Ask vendors for remediation guidance where firmware lineage is unclear.
Validation and detection
- Inventory BIOS or UEFI vendor, firmware version, and InsydeH2O kernel branch where available.
- Compare versions against the affected InsydeH2O kernel ranges.
- Confirm patched firmware versions after updates using vendor-approved tools.
- Track exceptions where device firmware lineage cannot be confirmed.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-42060 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.insyde.com/security-pledgeCVE reference · x_refsource_MISC
- https://www.insyde.com/security-pledge/SA-2022007CVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220217-0015/CVE reference · x_refsource_CONFIRM
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfCVE reference · x_refsource_CONFIRM
- https://www.kb.cert.org/vuls/id/796611CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.