---
cve: "CVE-2025-4275"
severity: "HIGH"
cvss: 7.8
epss: "44%"
vendor: "Insyde Software"
kev: false
exploited: false
published: "2025-06-11 01:15:20"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T21:52:35+02:00"
---

# CVE-2025-4275

> 7.8 HIGH

## Beschreibung

A vulnerability in the digital signature verification process does not properly validate variable attributes which allows an attacker to bypass signature verification by creating a non-authenticated NVRAM variable. An attacker may to execute arbitrary signed UEFI code and bypass Secure Boot.

## CVSS-Vektor

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

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

## Referenzen

- <https://www.insyde.com/security-pledge/sa-2025002/>
- <https://www.kb.cert.org/vuls/id/211341>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-4275) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_