Vulnerability Monitor

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CVE-2023-47252

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.

Published

2024-04-26T03:15:06.617

Last Modified

2025-07-29T23:30:00.790

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 6.3 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System insyde kernel < 5.28.45 Yes
Operating System insyde kernel < 5.37.45 Yes
Operating System insyde kernel < 5.45.45 Yes
Operating System insyde kernel < 5.53.45 Yes
Operating System insyde kernel < 5.60.45 Yes
References