Mozilla Critical Vulnerabilities - 20250714001¶
Overview¶
Multiple vulnerabilities have been discovered in Mozilla, the most severe of which could allow for arbitrary code execution.
What is vulnerable?¶
| Product(s) Affected | Version(s) | CVE | CVSS | Severity |
|---|---|---|---|---|
| Firefox | Version < 140 | CVE-2025-6427 | 9.1 | Critical |
| Firefox | Version < 140 | CVE-2025-6433 | 9.8 | Critical |
| Multiple Mozilla Products | Firefox < 140 Firefox ESR < 115.25 Firefox ESR < 128.12 Thunderbird < 140 Thunderbird < 128.12 |
CVE-2025-6424 | 9.8 | Critical |
What has been observed?¶
The WA SOC has not received any reports of exploitation of this vulnerability on Western Australian Government networks at the time of writing.
Recommendation¶
The WA SOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframes (refer Patch Management):
Additional References¶
- Tenable: https://www.tenable.com/cve/CVE-2025-6427
- Tenable: https://www.tenable.com/cve/CVE-2025-6433
- Tenable: https://www.tenable.com/cve/CVE-2025-6424
- CIS Advisories: https://www.cisecurity.org/advisory/multiple-vulnerabilities-in-mozilla-thunderbird-could-allow-for-arbitrary-code-execution_2025-064