CVE-2025-10537
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-16

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
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Meta Information
Published
2025-09-16
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2025-09-16
EPSS Evaluated
2026-06-15
NVD
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
mozilla thunderbird to 140.0 (inc)
mozilla thunderbird to 140.0 (inc)
mozilla firefox From 60.9.0 (exc)
mozilla firefox From 60.9.0 (exc)
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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 certain versions of Firefox and Thunderbird. These bugs can cause memory corruption, which means that the software might behave unpredictably or insecurely. With enough effort, attackers could potentially exploit these bugs to run arbitrary code on affected systems.

Impact Analysis

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

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