Read the docs
TI-2023-25570 Aliases CVE-2023-47252GHSA-46ff-m72j-q8vp

An issue was discovered in PnpSmm in Insyde InsydeH2O with kernel 5.0 through 5.6.

Priority LOW 27CWE-787Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

An issue was discovered in PnpSmm in Insyde InsydeH2O with kernel 5.0 through 5.6. There is a possible out-of-bounds access in the SMM communication buffer, leading to tampering. The PNP-related SMI sub-functions do not verify data size before getting it from the communication buffer, which could lead to possible circumstances where the data immediately following the command buffer could be destroyed with a fixed value. This is fixed in kernel 5.2 v05.28.45, kernel 5.3 v05.37.45, kernel 5.4 v05.45.45, kernel 5.5 v05.53.45, and kernel 5.6 v05.60.45.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00147 3rd 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:o:insyde:kernel:*:*:*:*:*:*:*:*5.2 to before 5.28.45; 5.3 to before 5.37.45; 5.4 to before 5.45.45; 5.5 to before 5.53.45; 5.6 to before 5.60.45VulnerableInsyde Software
  • cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* Versions 5.2 to before 5.28.45; 5.3 to before 5.37.45; 5.4 to before 5.45.45; 5.5 to before 5.53.45; 5.6 to before 5.60.45 Vulnerable ·Insyde Software

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-47252
  2. 2026-10-03 Alias added: GHSA-46ff-m72j-q8vp

References

Advisory 1

  • 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