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CVE-2026-84135

security@mozilla.org
CRITICAL
CVSS Score:9.8/10
Modified
Published: 9/1/2026
Modified: 9/3/2026
1 Affected Products
Risk Assessment
100%
Exploitability
100%
Impact
Overall Risk: 98%
Vulnerability Description

Other issue in Firefox Focus for Android. This vulnerability was fixed in Firefox 155.

CVSS v3.1 Score
9.8
CRITICAL
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
Exploitability
5.9
Impact
Attack Vector Analysis
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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