CVE-2023-39283

HIGH EPSS 9.3%
Published Nov 2, 20232y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Nov 2, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

Description

An SMM memory corruption vulnerability in the SMM driver (SMRAM write) in CsmInt10HookSmm in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to send arbitrary data to SMM which could lead to privilege escalation.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
9.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 4

VendorProductVersionRange
insydeinsydeh2o*≥5.0  –  ≤5.5
insydeinsydeh2o5.5.05.53.22any
insydeinsydeh2o5.6any
insydeinsydeh2o5.6.05.60.22any

References 2

  • insyde.com https://www.insyde.com/security-pledge
    Not Applicable
  • insyde.com https://www.insyde.com/security-pledge/SA-2023055
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.