---
cve: "CVE-2026-47046"
severity: "HIGH"
cvss: 8.2
epss: "0.4%"
vendor: "Oracle Corporation"
kev: false
exploited: false
published: "2026-07-21 22:17:10"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T17:23:03+01:00"
---

# CVE-2026-47046

> 8.2 HIGH

## Beschreibung

Vulnerability in the RDBMS component of Oracle Database Server.  Supported versions that are affected are 23.4.0-23.26.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise RDBMS.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of RDBMS as well as  unauthorized update, insert or delete access to some of RDBMS accessible data. CVSS 3.1 Base Score 8.2 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H).

## CNA-Record (Kanon, cvelistV5)

- CNA: **oracle**
- State: PUBLISHED
- Stand: 2026-07-23 15:41:23
- CNA-CVSS: **8.2** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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 | Gering | warn |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-400** — Uncontrolled Resource Consumption
  The product does not properly control the allocation and maintenance of a limited resource.

## Angriffsmuster (CAPEC)

- [CAPEC-147 — XML Ping of the Death](https://capec.mitre.org/data/definitions/147.html) _(Severity: Medium)_
- [CAPEC-227 — Sustained Client Engagement](https://capec.mitre.org/data/definitions/227.html)
- [CAPEC-492 — Regular Expression Exponential Blowup](https://capec.mitre.org/data/definitions/492.html)

## ATT&CK-Techniken

- [T1499 — Endpoint Denial of Service](https://attack.mitre.org/techniques/T1499/)

## BSI-Hinweise (deutsch)

- [Oracle Database Server: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-2430) — _BSI-Einstufung: hoch_
  Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Database Server ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

## Referenzen

- <https://www.oracle.com/security-alerts/cpujul2026.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-47046/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_