CVE-2026-109754
Deferred Deferred - Pending Action

DOM: Editor Component Boundary Condition Vulnerability in Firefox

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Mozilla Corporation

Description
Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-13
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
CVE-2026-109754
EUVD
EUVD-2026-98515

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox to 158 (inc)
mozilla firefox_esr to 153.5 (inc)

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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 DOM Editor component of Firefox and Firefox ESR. It was addressed in Firefox 158 and Firefox ESR 153.5.

Impact Analysis

An attacker could exploit this flaw to cause unexpected behavior or crashes in the affected browsers, potentially leading to arbitrary code execution or data corruption.

Mitigation Strategies

Update Firefox to version 158 or later and Firefox ESR to version 153.5 or later to address the DOM Editor component boundary condition issue.

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