CVE-2026-109752
Received Received - Intake

Use-after-free in Firefox DOM Workers

Vulnerability report for CVE-2026-109752, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Mozilla Corporation

Description

Use-after-free in the DOM: Workers component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.

CVSS Scores

EPSS Scores

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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
EUVD

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
mozilla firefox to 158 (inc)
mozilla firefox_esr to 153.5 (inc)
mozilla firefox 158
mozilla firefox_esr 153.5

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Mitigation Strategies

Update Firefox to version 158 or later and Firefox ESR to version 153.5 or later to address the use-after-free vulnerability in the DOM Workers component.

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EPSS Chart