Mozilla Firefox Critical Vulnerabilities - 20250612001¶
Overview¶
Multiple vulnerabilities in Mozilla Firefox prior to version 139.0.4 could allow for arbitrary code execution, potentially enabling attackers to install programmes, view, alter, or delete data, or create new accounts with full user privileges.
What is vulnerable?¶
| Product(s) Affected | Version(s) | CVE | CVSS | Severity |
|---|---|---|---|---|
| Mozilla Firefox | Prior to 139.0.4 | CVE-2025-49709 CVE-2025-49710 |
9.8 9.8 |
Critical 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):