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Scan & simplify dev workflows
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Loading vulnerability database

BACK TO VEDB

CVE-2026-124864: Mozilla Firefox: Sandbox escape due to use-after-free in the DOM: Service Workers component

Name: CVE-2026-124864: Mozilla Firefox: Sandbox escape due to use-after-free in the DOM: Service Workers component
Creator: Rapid7
Published: 2026-11-10T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-124864, CWE-416, CVSS 9.6

REQUEST DEMO

Sandbox escape due to use-after-free in the DOM: Service Workers component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.

CVSS Details

CVSS 3.1 Base Score: 9.6
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H)

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CVE details

CVSS v4 ScoreN/A

CVSS v3 Score

9.6 Critical

EPSS ScoreN/A

EPSS PercentileN/A

In CISA KEV CatalogueFalse

Published

Nov 10, 2026

References

MITRE ↗
NVD ↗

MDR Buyer's Guide

Global Threat Landscape Report