---
cve: "CVE-2023-35841"
severity: "HIGH"
cvss: 7.8
epss: "37%"
vendor: "Phoenix"
kev: false
exploited: false
published: "2024-05-14 14:56:14"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T04:47:45+02:00"
---

# CVE-2023-35841

> 7.8 HIGH

## Beschreibung

Exposed IOCTL with Insufficient Access Control in Phoenix WinFlash Driver on Windows allows Privilege Escalation which allows for modification of system firmware.This issue affects WinFlash Driver: before 4.5.0.0.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://phoenixtech.com/phoenix-security-notifications/cve-2023-35841/>
- <https://blogs.vmware.com/security/2023/10/hunting-vulnerable-kernel-drivers.html>
- <https://jvn.jp/en/vu/JVNVU93886750/index.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-35841) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_