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TI-2022-13973 Aliases CVE-2022-32266GHSA-j8q4-3cww-3fwm

DMA attacks on the parameter buffer used by a software SMI handler used by the driver…

Priority LOW 28CWE-787Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

DMA attacks on the parameter buffer used by a software SMI handler used by the driver PcdSmmDxe could lead to a TOCTOU attack on the SMI handler and lead to corruption of other ACPI fields and adjacent memory fields. DMA attacks on the parameter buffer used by a software SMI handler used by the driver PcdSmmDxe could lead to a TOCTOU attack on the SMI handler and lead to corruption of other ACPI fields and adjacent memory fields. The attack would require detailed knowledge of the PCD database contents on the current platform. This issue was discovered by Insyde engineering during a security review. This issue is fixed in Kernel 5.3: 05.36.23, Kernel 5.4: 05.44.23, Kernel 5.5: 05.52.23. Kernel 5.2 is unaffected. CWE-787 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the parameter buffer that is used by a software SMI handler (used by the PcdSmmDxe driver) could lead to a TOCTOU race-condition attack on the SMI handler, and lead to corruption of other ACPI fields and adjacent memory fields. The attack would require detailed knowledge of the PCD database contents on the current platform.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0018 7th 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:kernel:*:*:*:*:*:*:*:*5.3 to before 5.3.05.36.23; 5.4 to before 5.4.05.44.23; 5.5 to before 5.5.05.52.23VulnerableInsyde Software
  • cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* Versions 5.3 to before 5.3.05.36.23; 5.4 to before 5.4.05.44.23; 5.5 to before 5.5.05.52.23 Vulnerable ·Insyde Software

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-32266
  2. 2026-10-03 Alias added: GHSA-j8q4-3cww-3fwm

References

Advisory 2

  • TI-2021-16172 Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize. CVSS 3.1CRITICAL 9.8
  • TI-2021-16170 NetworkPkg/IScsiDxe has remotely exploitable buffer overflows. CVSS 3.1HIGH 8.1
  • TI-2024-32800 An issue was discovered in AcpiS3SaveDxe and ChipsetSvcDxe in Insyde InsydeH2O with… CVSS 3.1MEDIUM 6.4
  • TI-2022-16680 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
  • TI-2022-11814 Use of a untrusted pointer allows tampering with SMRAM and OS memory in SdHostDriver and… CVSS 3.1HIGH 8.2
  • TI-2022-11813 Incorrect pointer checks within the NvmExpressDxe driver can allow tampering with SMRAM… CVSS 3.1HIGH 8.2
See all 32 →

Sources

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