CVE-2026-2801
Received Received - Intake
Boundary Error in Firefox WebAssembly Causes Potential Memory Corruption

Publication date: 2026-02-24

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
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Meta Information
Published
2026-02-24
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2026-02-24
EPSS Evaluated
2026-06-14
NVD
CVE-2026-2801
EUVD
EUVD-2026-8455
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox to 148.0 (exc)
mozilla thunderbird to 148.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-754 The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.
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Executive Summary

This vulnerability involves incorrect boundary conditions in the JavaScript WebAssembly component of Firefox versions earlier than 148.

Impact Analysis

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