---
cve: "CVE-2026-83548"
severity: "CRITICAL"
cvss: 10.0
epss: "8%"
vendor: "SonicWall"
kev: true
exploited: true
published: "2026-09-01 21:25:45"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T19:02:14+01:00"
---

# CVE-2026-83548

> 10.0 CRITICAL · ⚠️ CISA KEV (55 Tage) · 🔓 Exploited

## Beschreibung

A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote unauthenticated attacker could potentially exploit this vulnerability to gain unauthorized access to sensitive functionality and perform unauthorized operations.

## CNA-Record (Kanon, cvelistV5)

- CNA: **sonicwall**
- State: PUBLISHED
- Stand: 2026-09-03 03:55:31

## CISA-Anreicherung (vulnrichment/ADP)

- CISA KEV seit: **02.09.2026**
- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **active**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-441** — Unintended Proxy or Intermediary ('Confused Deputy')
  The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the…
- **CWE-918** — Server-Side Request Forgery (SSRF)
  The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

## Angriffsmuster (CAPEC)

- [CAPEC-219 — XML Routing Detour Attacks](https://capec.mitre.org/data/definitions/219.html) _(Severity: Medium)_
- [CAPEC-465 — Transparent Proxy Abuse](https://capec.mitre.org/data/definitions/465.html) _(Severity: Medium)_

## ATT&CK-Techniken

- [T1090.001 — Proxy: Internal Proxy](https://attack.mitre.org/techniques/T1090/001/)

## BSI-Hinweise (deutsch)

- [SonicWall SMA: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-3135) — _BSI-Einstufung: kritisch_
  Ein Angreifer kann mehrere Schwachstellen in SonicWall SMA ausnutzen, um Sicherheitsvorkehrungen zu umgehen und Code mit Administratorrechten auszuführen.

## Referenzen

- <https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-83548/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_