---
cve: "CVE-2025-9276"
severity: "CRITICAL"
cvss: 9.8
epss: "0.7%"
vendor: "Cockroach Labs"
kev: false
exploited: false
published: "2025-09-02 20:15:40"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-26T22:03:32+01:00"
---

# CVE-2025-9276

> 9.8 CRITICAL

## Beschreibung

Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability. This vulnerability could allow remote attackers to bypass authentication on systems that use the affected version of the Cockroach Labs cockroach-k8s-request-cert container image.

The specific flaw exists within the configuration of the system shadow file. The issue results from a blank password setting for the root user. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-22195.

## CNA-Record (Kanon, cvelistV5)

- CNA: **zdi**
- State: PUBLISHED
- Stand: 2025-09-03 15:32:42
- CNA-CVSS: **9.8** (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

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

## CVSS-Vektor

```
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/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 | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-258** — Empty Password in Configuration File
  Using an empty string as a password is insecure.

## Referenzen

- <https://www.zerodayinitiative.com/advisories/ZDI-25-855/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2025-9276/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_