BaseFortify

Publication date: 2025-12-09

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description

Memory safety bugs present in Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 146 and Thunderbird 146.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-12-09

Last Modified

2026-04-13

Generated

2026-07-06

AI Q&A

2025-12-09

EPSS Evaluated

2026-07-05

NVD

CVE-2025-14332

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 146.0 (exc)
mozilla	thunderbird	to 146.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability involves memory safety bugs in Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption, which means that with enough effort, an attacker could potentially exploit them to run arbitrary code on the affected systems. It affects Firefox versions earlier than 146.

Impact Analysis

If exploited, this vulnerability could allow an attacker to execute arbitrary code on your system, potentially leading to unauthorized access, data theft, or system compromise.

Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 146 or later, as the vulnerability affects Firefox versions earlier than 146. Similarly, ensure Thunderbird is updated to the latest version. Avoid using affected versions to prevent exploitation.

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