---
cve: "CVE-2023-31100"
severity: "HIGH"
cvss: 8.4
epss: "19%"
vendor: "Phoenix"
kev: false
exploited: false
published: "2023-11-15 00:15:07"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T00:39:52+02:00"
---

# CVE-2023-31100

> 8.4 HIGH

## Beschreibung

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

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Keine | good |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://phoenixtech.com/phoenix-security-notifications/cve-2023-31100/>
- <https://www.phoenix.com/security-notifications/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-31100) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_