BaseFortify

Publication date: 2025-11-11

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description

Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-11-11

Last Modified

2026-04-13

Generated

2026-07-06

AI Q&A

2025-11-11

EPSS Evaluated

2026-07-05

NVD

CVE-2025-13016

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	From 60.9.0 (exc)
mozilla	firefox	From 60.9.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-703	The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.

Attack-Flow Graph

Executive Summary

This vulnerability is due to incorrect boundary conditions in the JavaScript WebAssembly component of Firefox. It affects versions of Firefox earlier than 145 and Firefox ESR earlier than 140.5, potentially allowing unexpected behavior or exploitation related to memory boundaries in WebAssembly execution.

Impact Analysis

The vulnerability could allow attackers to exploit incorrect boundary checks in the WebAssembly component, potentially leading to memory corruption, crashes, or execution of arbitrary code within affected Firefox versions.

Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 145 or later, or Firefox ESR to version 140.5 or later.

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