---
cve: "CVE-2025-37731"
severity: "MEDIUM"
cvss: 6.8
epss: "0.2%"
vendor: "Elastic"
kev: false
exploited: false
published: "2025-12-15 11:15:39"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-23T15:10:17+02:00"
---

# CVE-2025-37731

> 6.8 MEDIUM

## Beschreibung

Improper Authentication in Elasticsearch PKI realm can lead to user impersonation via specially crafted client certificates. A malicious actor would need to have such a crafted client certificate signed by a legitimate, trusted Certificate Authority.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- e34ace04b64e9bfa3f9e785b08e6d81f8efe314b (Commit)
- 50f58de526b746a6cc07f0cbec0e0d510f13ce52 (Commit)

## Referenzen

- <https://discuss.elastic.co/t/elasticsearch-8-19-8-9-1-8-and-9-2-2-security-update-esa-2025-27/384063>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-37731) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_