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Mozilla CVE-2025-14860

CRITICAL
Use After Free (CWE-416)
2025-12-18 security@mozilla.org
Memory Corruption Mozilla Use After Free Information Disclosure Suse
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SUSE
CRITICAL
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
Analysis Generated
Apr 13, 2026 - 16:12 vuln.today

DescriptionCVE.org

Use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 146.0.1.

AnalysisAI

Remote code execution in Mozilla Firefox via use-after-free in Disability Access APIs allows unauthenticated network attackers to compromise browser integrity with high impact. The vulnerability (CWE-416) affects Firefox versions prior to 146.0.1 and requires no user interaction or special privileges. With CVSS 9.8 (Critical) but low EPSS (0.07%, 21st percentile), real-world exploitation probability remains limited despite theoretical severity. No public exploit identified at time of analysis, and vendor-released patch 146.0.1 available.

Technical ContextAI

This vulnerability stems from a use-after-free condition (CWE-416) in Firefox's Disability Access APIs, which provide programmatic interfaces for assistive technologies to interact with browser content. Use-after-free vulnerabilities occur when memory is accessed after being freed, creating potential for arbitrary code execution if an attacker can control the freed memory region. The affected component (cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*) exposes this flaw through network-accessible attack surfaces. Disability Access APIs typically involve DOM manipulation and cross-process communication, making memory lifecycle management particularly critical. The lack of scope change (S:U) indicates the vulnerability is confined to the browser's security context, though full confidentiality, integrity, and availability impact are achievable within that boundary.

RemediationAI

Immediately upgrade Mozilla Firefox to version 146.0.1 or later, which contains the complete fix for this use-after-free vulnerability. Firefox's automatic update mechanism should deploy this patch without user intervention for most installations. Enterprise administrators using managed deployments should prioritize distribution of version 146.0.1 through their software management systems. Verify successful update by navigating to About Firefox in the application menu and confirming version number. No effective workarounds exist for this vulnerability short of upgrading, as the Disability Access APIs are integral browser components that cannot be safely disabled without breaking accessibility functionality. Complete remediation guidance and technical details are available in Mozilla Security Advisory MFSA2025-98 at https://www.mozilla.org/security/advisories/mfsa2025-98/ and the upstream bug report at https://bugzilla.mozilla.org/show_bug.cgi?id=2000597.

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Same weakness CWE-416 – Use After Free

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Vendor StatusVendor

SUSE

Severity: Critical
Product Status
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP7 Fixed

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CVE-2025-14860 vulnerability details – vuln.today
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