CVE-2026-16368
Received Received - Intake

Incorrect Boundary Handling in Firefox JavaScript WebAssembly

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: Mozilla Corporation

Description
Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-21
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-16368
EUVD
EUVD-2026-46201

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox 153
mozilla firefox_esr 140.13

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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 involves incorrect boundary conditions in the JavaScript: WebAssembly component of Firefox and Firefox ESR. It was addressed in Firefox version 153 and Firefox ESR version 140.13.

Impact Analysis

An attacker could exploit this flaw to execute arbitrary code or cause a denial of service by triggering boundary condition errors in WebAssembly interactions within Firefox.

Mitigation Strategies

Update Firefox to version 153 or later and Firefox ESR to version 140.13 or later to address the vulnerability.

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