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Standard
Vulnerability Identifier

CVE-2026-0892

2026-01-13
Severity Assessment
9.8
CRITICAL
CVSS v3.x Score
Clinical Analysis (Description)

Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. 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

Unchanged
Scope
High
Confidentiality
High
Integrity
High
Availability
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Classification

CWE-CWE-119

Timeline

Time Line

PUBLICATION
13 Jan 2026
MODIFICATION
14 Jan 2026
Impact Statistics

Key Metrics

CVSS Score
9.8
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