Vulnerability Identifier
CVE-2026-0881
2026-01-13
Severity Assessment
10.0
CRITICAL
CVSS v3.x Score
Clinical Analysis (Description)
Sandbox escape in the Messaging System component. This vulnerability affects Firefox < 147.
Vector Sequencing
Attack Parameters
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Impact Consequences
Technical Impact
Changed
Scope
High
Confidentiality
High
Integrity
High
Availability
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Timeline
Time Line
PUBLICATION
13 Jan 2026
MODIFICATION
14 Jan 2026
Impact Statistics
Key Metrics
CVSS Score
10.0
CRITICAL
Remediation Protocol
Recommended Solution
No automatic solution found. Check vendor references.
Patch Library
No direct patch listed in database.
Recommended Actions for Administrators
Immediate Action Plan
1. Inventory
Identify all affected systems in your infrastructure.
2. Assessment
Assess exposure and criticality for your organization.
3. Mitigation
Apply patches or available workarounds.
4. Verification
Test and confirm effectiveness of applied measures.
⚠️ MAXIMUM PRIORITY - Immediate action required
Sources & Bibliography