---
cve: "CVE-2025-9179"
severity: "CRITICAL"
cvss: 9.8
epss: "0.6%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2025-08-19 21:15:30"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-09T06:38:07+02:00"
---

# CVE-2025-9179

> 9.8 CRITICAL

## Beschreibung

An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - 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
```

| 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 |

## BSI-Hinweise (deutsch)

- [Mozilla Firefox und Thunderbird: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2025-1866) — _BSI-Einstufung: hoch_
  Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um Daten zu manipulieren, um einen Denial of Service Angriff durchzuführen, und um beliebigen Programmcode auszuführen.

## Referenzen

- <https://bugzilla.mozilla.org/show_bug.cgi?id=1979527>
- <https://www.mozilla.org/security/advisories/mfsa2025-64/>
- <https://www.mozilla.org/security/advisories/mfsa2025-65/>
- <https://www.mozilla.org/security/advisories/mfsa2025-66/>
- <https://www.mozilla.org/security/advisories/mfsa2025-67/>
- <https://www.mozilla.org/security/advisories/mfsa2025-70/>
- <https://www.mozilla.org/security/advisories/mfsa2025-71/>
- <https://www.mozilla.org/security/advisories/mfsa2025-72/>
- <https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html>
- <https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2025-9179/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_