---
cve: "CVE-2025-40601"
severity: "HIGH"
cvss: 7.5
epss: "1.2%"
vendor: "SonicWall"
kev: false
exploited: false
published: "2025-11-20 15:17:28"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-30T11:19:55+02:00"
---

# CVE-2025-40601

> 7.5 HIGH

## Beschreibung

A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

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

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

## BSI-Hinweise (deutsch)

- [SonicWall SSL-VPN: Schwachstelle ermöglicht Denial of Service](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2025-2640)

## Referenzen

- <https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0016>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-40601) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_