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.
History

Tue, 29 Jul 2025 23:30:00 +0000

Type Values Removed Values Added
First Time appeared Insyde kernel
CPEs cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:*
Vendors & Products Insyde kernel

Wed, 20 Nov 2024 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2024-04-26T00:00:00

Updated: 2024-11-20T15:50:18.349Z

Reserved: 2023-11-05T00:00:00

Link: CVE-2023-47252

cve-icon Vulnrichment

Updated: 2024-08-02T21:09:35.794Z

cve-icon NVD

Status : Analyzed

Published: 2024-04-26T03:15:06.617

Modified: 2025-07-29T23:30:00.790

Link: CVE-2023-47252

cve-icon Redhat

No data.