CVE-2026-12307
Received Received - Intake
Memory Corruption Bug in Firefox

Publication date: 2026-06-16

Last updated on: 2026-06-16

Assigner: Mozilla Corporation

Description
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12.
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Meta Information
Published
2026-06-16
Last Modified
2026-06-16
Generated
2026-06-16
AI Q&A
2026-06-16
EPSS Evaluated
N/A
NVD
CVE-2026-12307
EUVD
EUVD-2026-37098
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox 152
mozilla firefox_esr 140.12
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a memory safety bug that was present in Mozilla Firefox. It was addressed and fixed in Firefox version 152 and Firefox ESR 140.12.

Mitigation Strategies

The vulnerability is fixed in Firefox 152 and Firefox ESR 140.12. To mitigate this vulnerability, you should update your Firefox browser to version 152 or later, or Firefox ESR to version 140.12 or later.

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