CVE-2026-4725

| EUVD-2026-14865 CRITICAL
2026-03-24 mozilla GHSA-px39-2r97-x6x6
10.0
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

4
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 24, 2026 - 12:45 vuln.today
EUVD ID Assigned
Mar 24, 2026 - 12:45 euvd
EUVD-2026-14865
CVE Published
Mar 24, 2026 - 12:30 nvd
CRITICAL 10.0

Tags

Information Disclosure Memory Corruption Mozilla Use After Free Firefox

Description

Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149.

Analysis

Unauthenticated remote attackers can escape the Firefox sandbox through a use-after-free vulnerability in the Canvas2D graphics component, allowing arbitrary code execution on affected systems running Firefox versions prior to 149. The vulnerability requires no user interaction and impacts the entire system due to its critical severity and CVSS score of 10.0. …

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Remediation

Within 24 hours: Identify all affected systems and apply vendor patches immediately. If patching is delayed, consider network segmentation to limit exposure.

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Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +50
POC: 0

Vendor Status

Debian

firefox
Release Status Fixed Version Urgency
sid vulnerable 148.0.2-1 -
(unstable) fixed (unfixed) -

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CVE-2026-4725 vulnerability details – vuln.today
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