CVE-2026-4722
Received Received - Intake

Privilege Escalation in Firefox IPC Component Before

Publication date: 2026-03-24

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

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Meta Information

Published
2026-03-24
Last Modified
2026-04-13
Generated
2026-07-06
AI Q&A
2026-03-24
EPSS Evaluated
2026-07-05
NVD
CVE-2026-4722
EUVD
EUVD-2026-14859

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox to 149.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Detection Guidance

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Executive Summary

This vulnerability is a privilege escalation issue in the IPC (Inter-Process Communication) component of Firefox versions earlier than 149.

Compliance Impact

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Impact Analysis

An attacker exploiting this vulnerability could gain elevated privileges within the affected Firefox browser, potentially allowing them to perform actions or access data beyond their normal permissions.

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