---
cve: "CVE-2022-42475"
severity: "CRITICAL"
cvss: 9.3
epss: "99.5%"
vendor: "Fortinet"
kev: true
exploited: true
published: "2023-01-02 09:15:09"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-11-01T18:40:55+01:00"
---

# CVE-2022-42475

> 9.3 CRITICAL · ⚠️ CISA KEV (1419 Tage) · 🔓 Exploited

## Beschreibung

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier  and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.

## CNA-Record (Kanon, cvelistV5)

- CNA: **fortinet**
- State: PUBLISHED
- Stand: 2025-10-21 23:15:29
- CNA-CVSS: **9.3** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA KEV seit: **13.12.2022**
- 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:U/C:H/I:H/A:H/E:P/RL:U/RC:C
```

| 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 | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-122** — Heap-based Buffer Overflow
  A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

## Angriffsmuster (CAPEC)

- [CAPEC-92 — Forced Integer Overflow](https://capec.mitre.org/data/definitions/92.html) _(Severity: High)_

## BSI-Hinweise (deutsch)

- [Fortinet FortiOS und FortiProxy: Schwachstelle ermöglicht Codeausführung](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2022-2293) — _BSI-Einstufung: kritisch_
  Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Fortinet FortiOS und FortiProxy ausnutzen, um beliebigen Programmcode auszuführen.

## Referenzen

- <https://fortiguard.com/psirt/FG-IR-22-398>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42475>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2022-42475/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_