Description
Sandbox escape in the Remote Settings Client component. This vulnerability was fixed in Firefox 154 and Thunderbird 154.
Published: 2026-08-18
Score: 10 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 18 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 18 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
Description Sandbox escape in the Remote Settings Client component. This vulnerability was fixed in Firefox 154. Sandbox escape in the Remote Settings Client component. This vulnerability was fixed in Firefox 154 and Thunderbird 154.
References

Tue, 18 Aug 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Weaknesses CWE-264
CWE-284
Vendors & Products Mozilla
Mozilla firefox

Tue, 18 Aug 2026 12:45:00 +0000

Type Values Removed Values Added
Description Sandbox escape in the Remote Settings Client component. This vulnerability was fixed in Firefox 154.
Title Sandbox escape in the Remote Settings Client component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-08-18T19:24:04.720Z

Reserved: 2026-08-18T12:23:35.313Z

Link: CVE-2026-75874

cve-icon Vulnrichment

Updated: 2026-08-18T19:23:39.591Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-08-18T13:17:43.500

Modified: 2026-08-18T20:17:32.827

Link: CVE-2026-75874

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T14:00:13Z

Weaknesses