CVE-2026-14241

Modified Modified - Updated After Analysis

Memory Corruption in Firefox 152.0.3

Publication date: 2026-06-30

Last updated on: 2026-07-06

Assigner: Mozilla Corporation

Description

Memory safety bugs present in Firefox 152.0.3. 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 152.0.4.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-30

Last Modified

2026-07-06

Generated

2026-07-20

AI Q&A

2026-06-30

EPSS Evaluated

2026-07-19

NVD

CVE-2026-14241

EUVD

EUVD-2026-40321

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	152.0.3

Helpful Resources

Exploitability

CWE

KEV

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

Attack-Flow Graph

Executive Summary

CVE-2026-14241 is a memory safety vulnerability found in Firefox version 152.0.3. It involves memory corruption bugs that could potentially allow an attacker to exploit these issues to run arbitrary code on the affected system.

Impact Analysis

This vulnerability can have a high impact because it may allow attackers to execute arbitrary code on your system if exploited. This could lead to unauthorized control over your device, data theft, or other malicious activities.

Mitigation Strategies

To mitigate this vulnerability, you should update Firefox to version 152.0.4 or later, as this version contains the fix for the memory safety bugs present in Firefox 152.0.3.

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