CVE-2023-47252

MEDIUM EPSS 4.3%
Published Apr 26, 20242y ago · Modified Jun 17, 20262w ago
6.3 CVSS 3.1
Medium
Find Similar
Published Apr 26, 2024 2y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
6.3
Exploitability
1.0
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 5

VendorProductVersionRange
insydekernel*≥5.2  –  <5.28.45
insydekernel*≥5.3  –  <5.37.45
insydekernel*≥5.4  –  <5.45.45
insydekernel*≥5.5  –  <5.53.45
insydekernel*≥5.6  –  <5.60.45

References 1

  • insyde.com https://www.insyde.com/security-pledge/SA-2023067
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.