CVE-2023-31100

State: Published
Severity: 8.4 High
Published: Nov 14, 2023
Updated: Jul 28, 2025
Reserved: Apr 24, 2023

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

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H	Phoenix

Weaknesses

CWE-284 Improper Access Control in SMI handler

Affected Products

Product	Versions
SecureCore™ Technology™ 4Phoenix	4.3.0.0 to before 4.3.0.203Affected 4.3.1.0 to before 4.3.1.163Affected 4.4.0.0 to before 4.4.0.217Affected 4.5.0.0 to before 4.5.0.138Affected

References

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