Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2023-31100

Severity CVSS v4.0:
Pending analysis
Type:
CWE-284 Improper Access Control
Publication date:
15/11/2023
Last modified:
25/09/2025

Description

Improper Access Control in SMI handler vulnerability in Phoenix SecureCore™ Technology™ 4 allows SPI flash modification.<br /> This issue affects SecureCore™ Technology™ 4:<br /> <br /> <br /> * from 4.3.0.0 before 4.3.0.203<br /> * <br /> <br /> from <br /> <br /> 4.3.1.0 before 4.3.1.163<br /> * <br /> <br /> from <br /> <br /> 4.4.0.0 before 4.4.0.217<br /> * <br /> <br /> from <br /> <br /> 4.5.0.0 before 4.5.0.138

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.40 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): High
Availability (A): High

Base Score 3.x
8.40
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:phoenixtech:securecore_technology:*:*:*:*:*:*:*:* 4.3.0.0 (including) 4.3.0.203 (excluding)
cpe:2.3:o:phoenixtech:securecore_technology:*:*:*:*:*:*:*:* 4.3.1.0 (including) 4.3.1.163 (excluding)
cpe:2.3:o:phoenixtech:securecore_technology:*:*:*:*:*:*:*:* 4.4.0.0 (including) 4.4.0.217 (excluding)
cpe:2.3:o:phoenixtech:securecore_technology:*:*:*:*:*:*:*:* 4.5.0.0 (including) 4.5.0.138 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools