CVE-2026-109714
Deferred Deferred - Pending Action

Incorrect Boundary Conditions in Firefox Layout Component

Publication date: 2026-10-13

Last updated on: 2026-10-15

Assigner: Mozilla Corporation

Description
Incorrect boundary conditions in the Layout component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-15
Generated
2026-10-19
AI Q&A
2026-10-13
EPSS Evaluated
2026-10-18
NVD
CVE-2026-109714
EUVD
EUVD-2026-98489

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 158

Helpful Resources

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 incorrect boundary conditions in Firefox's Layout component. It was patched in Firefox version 158. The issue likely allows improper handling of layout rendering, potentially causing visual glitches or unexpected behavior in web pages.

Impact Analysis

The impact depends on the nature of the boundary condition error. It could lead to rendering issues, crashes, or security bypasses if exploited. Users running unpatched Firefox versions may experience instability or security risks when visiting certain websites.

Mitigation Strategies

Update Firefox to version 158 or later to address the incorrect boundary conditions in the Layout component.

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