Description
Improper Access Control in SMI handler vulnerability in Phoenix SecureCore™ Technology™ 4 allows SPI flash modification.
This issue affects SecureCore™ Technology™ 4:


* from 4.3.0.0 before 4.3.0.203
*

from

4.3.1.0 before 4.3.1.163
*

from

4.4.0.0 before 4.4.0.217
*

from

4.5.0.0 before 4.5.0.138
Published: 2023-11-14
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-35428 Improper Access Control in SMI handler vulnerability in Phoenix SecureCore™ Technology™ 4 allows SPI flash modification. This issue affects SecureCore™ Technology™ 4: * from 4.3.0.0 before 4.3.0.203 * from 4.3.1.0 before 4.3.1.163 * from 4.4.0.0 before 4.4.0.217 * from 4.5.0.0 before 4.5.0.138
History

Thu, 25 Sep 2025 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Phoenixtech
Phoenixtech securecore Technology
CPEs cpe:2.3:o:phoenix:securecore_technology:*:*:*:*:*:*:*:* cpe:2.3:o:phoenixtech:securecore_technology:*:*:*:*:*:*:*:*
Vendors & Products Phoenix
Phoenix securecore Technology
Phoenixtech
Phoenixtech securecore Technology

Mon, 28 Jul 2025 21:00:00 +0000

Type Values Removed Values Added
Description Improper Access Control in SMI handler vulnerability in Phoenix SecureCore™ Technology™ 4 allows SPI flash modification. This issue affects SecureCore™ Technology™ 4: * from 4.3.0.0 before 4.3.0.203 * from 4.3.1.0 before 4.3.1.163 * from 4.4.0.0 before 4.4.0.217 * from 4.5.0.0 before 4.5.0.138 Improper Access Control in SMI handler vulnerability in Phoenix SecureCore™ Technology™ 4 allows SPI flash modification. This issue affects SecureCore™ Technology™ 4: * from 4.3.0.0 before 4.3.0.203 * from 4.3.1.0 before 4.3.1.163 * from 4.4.0.0 before 4.4.0.217 * from 4.5.0.0 before 4.5.0.138
References

Mon, 02 Dec 2024 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Phoenixtech Securecore Technology
cve-icon MITRE

Status: PUBLISHED

Assigner: Phoenix

Published:

Updated: 2025-07-28T20:48:38.895Z

Reserved: 2023-04-24T06:17:27.488Z

Link: CVE-2023-31100

cve-icon Vulnrichment

Updated: 2024-08-02T14:45:25.673Z

cve-icon NVD

Status : Analyzed

Published: 2023-11-15T00:15:07.573

Modified: 2025-09-25T21:17:10.353

Link: CVE-2023-31100

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses