CVE-2025-14861
Unknown Unknown - Not Provided
Memory Corruption in Firefox <146.0.1 Enables Code Execution

Publication date: 2025-12-18

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Memory safety bugs present in Firefox 146. 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 146.0.1.
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Meta Information
Published
2025-12-18
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2025-12-18
EPSS Evaluated
2026-06-14
NVD
CVE-2025-14861
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox <146.0.1>
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
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Executive Summary

This vulnerability involves memory safety bugs in Firefox versions before 146.0.1. Some of these bugs showed evidence of memory corruption, which means that attackers could potentially exploit them to run arbitrary code on the affected system.

Impact Analysis

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

Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 146.0.1 or later, as the vulnerability affects Firefox versions prior to 146.0.1.

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