Mozilla · Thunderbird · CVE-2025-4092
**Name of the Vulnerable Software and Affected Versions**
Firefox versions prior to 138
Thunderbird versions prior to 138
**Description**
Memory safety bugs are present in certain versions of Firefox and Thunderbird, showing evidence of memory corruption. It is presumed that with enough effort, some of these bugs could be exploited to run arbitrary code.
**Recommendations**
For Firefox versions prior to 138, update to version 138 or later.
For Thunderbird versions prior to 138, update to version 138 or later.