CVE-2023-47252
InsydeH2O PnpSmm Out-Of-Bounds Write
Description
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.
INFO
Published Date :
April 26, 2024, 3:15 a.m.
Last Modified :
July 29, 2025, 11:30 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
1.0
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-47252.
| URL | Resource |
|---|---|
| https://www.insyde.com/security-pledge/SA-2023067 | Vendor Advisory |
| https://www.insyde.com/security-pledge/SA-2023067 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-47252 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-47252 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 29, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.28.45 Added CPE Configuration OR *cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* versions from (including) 5.3 up to (excluding) 5.37.45 Added CPE Configuration OR *cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* versions from (including) 5.4 up to (excluding) 5.45.45 Added CPE Configuration OR *cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.53.45 Added CPE Configuration OR *cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* versions from (including) 5.6 up to (excluding) 5.60.45 Added Reference Type CVE: https://www.insyde.com/security-pledge/SA-2023067 Types: Vendor Advisory Added Reference Type MITRE: https://www.insyde.com/security-pledge/SA-2023067 Types: Vendor Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://www.insyde.com/security-pledge/SA-2023067 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 20, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-787 Added CVSS V3.1 CISA-ADP AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Received by [email protected]
Apr. 26, 2024
Action Type Old Value New Value Added Description 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. Added Reference MITRE https://www.insyde.com/security-pledge/SA-2023067 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-47252 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-47252
weaknesses.