CVE-2024-52877

HIGH EPSS 31.9%
Published May 15, 20251y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published May 15, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.50. In VariableRuntimeDxe driver, callback function SmmCreateVariableLockList () calls CreateVariableLockListInSmm (). In CreateVariableLockListInSmm (), it uses StrSize () to get variable name size and it could lead to a buffer over-read.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
31.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-126

Affected Products 6

VendorProductVersionRange
insydeinsydeh2o*≥5.2  –  <5.2.05.29.50
insydeinsydeh2o*≥5.3  –  <5.3.05.38.50
insydeinsydeh2o*≥5.4  –  <5.4.05.46.50
insydeinsydeh2o*≥5.5  –  <5.5.05.54.50
insydeinsydeh2o*≥5.6  –  <5.6.05.61.50
insydeinsydeh2o*≥5.7  –  <5.7.05.70.50

References 2

  • insyde.com https://www.insyde.com/security-pledge
    Vendor Advisory
  • insyde.com https://www.insyde.com/security-pledge/sa-2024016/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.