---
cve: "CVE-2025-8036"
severity: "HIGH"
cvss: 8.1
epss: ""
vendor: "Generic Security"
kev: false
exploited: false
published: "2025-07-22 21:15:50"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-04T05:47:00+02:00"
---

# CVE-2025-8036

> 8.1 HIGH

## Beschreibung

Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS with DNS rebinding. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

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

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

## BSI-Hinweise (deutsch)

- [Mozilla Firefox , Firefox ESR und Thunderbird: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2025-1623)

## Referenzen

- <https://bugzilla.mozilla.org/show_bug.cgi?id=1960834>
- <https://www.mozilla.org/security/advisories/mfsa2025-56/>
- <https://www.mozilla.org/security/advisories/mfsa2025-59/>
- <https://www.mozilla.org/security/advisories/mfsa2025-61/>
- <https://www.mozilla.org/security/advisories/mfsa2025-63/>
- <https://www.kb.cert.org/vuls/id/652514>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-8036) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_