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TI-2023-20428 Aliases CVE-2023-39284GHSA-5j4m-86cg-p2mg

An issue was discovered in IhisiServicesSmm in Insyde InsydeH2O with kernel 5.0 through…

Priority LOW 24Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An issue was discovered in IhisiServicesSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. There are arbitrary calls to SetVariable with unsanitized arguments in the SMI handler.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00189 8th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*5.2 to before 5.2.05.28.33; 5.3 to before 5.3.05.37.33; 5.4 to before 5.4.05.45.33; 5.5 to before 5.5.05.53.33; 5.6 to before 5.6.05.60.33VulnerableInsyde Software
  • cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* Versions 5.2 to before 5.2.05.28.33; 5.3 to before 5.3.05.37.33; 5.4 to before 5.4.05.45.33; 5.5 to before 5.5.05.53.33; 5.6 to before 5.6.05.60.33 Vulnerable ·Insyde Software

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-39284
  2. 2026-10-03 Alias added: GHSA-5j4m-86cg-p2mg

References

Advisory 2

  • TI-2023-08797 An issue was discovered in ChipsetSvcSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.8
  • TI-2022-16772 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
  • TI-2022-16681 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
  • TI-2022-16323 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
  • TI-2022-15984 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
  • TI-2023-08799 An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. CVSS 3.1HIGH 7.8
See all 65 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences