CVE-2025-14333
BaseFortify
Publication date: 2025-12-09
Last updated on: 2026-04-13
Assigner: Mozilla Corporation
Description
Description
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mozilla | thunderbird_esr | 140.5 |
| mozilla | thunderbird | 145 |
| mozilla | firefox_esr | 140.5 |
| mozilla | firefox | 145 |
| mozilla | firefox | to 146.0 (inc) |
| mozilla | thunderbird | to 146.0 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves memory safety bugs in certain versions of Firefox and Thunderbird (specifically Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145, and Thunderbird 145). These bugs can cause memory corruption, which could potentially be exploited by attackers to execute arbitrary code on affected systems.
How can this vulnerability impact me? :
If exploited, this vulnerability could allow an attacker to run arbitrary code on your system without your permission, potentially leading to unauthorized access, data theft, or system compromise.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update Firefox to version 146 or later, and Firefox ESR to version 140.6 or later. Similarly, update Thunderbird and Thunderbird ESR to their latest versions to ensure the memory safety bugs are fixed.