Is Firefox affected by EUVD-2026-14845?

CVE-2026-4715 presents critical security risk rated CVSS 9.1. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.

EUVD-2026-14845

Q: How to fix EUVD-2026-14845?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Monitor vendor channels for patch availability.

| CVE-2026-4715 CRITICAL

2026-03-24 mozilla

GHSA-8cfw-c9hx-8f9v

9.1

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Lifecycle Timeline

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-2026-14845

CVE Published

Mar 24, 2026 - 12:30 nvd

CRITICAL 9.1

Description

Uninitialized memory in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149 and Firefox ESR < 140.9.

Analysis

An uninitialized memory vulnerability exists in Firefox and Firefox ESR's Graphics Canvas2D component that can lead to information disclosure. Firefox versions prior to 149 and Firefox ESR versions prior to 140.9 are affected. …

Remediation

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Monitor vendor channels for patch availability.

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.0

CVSS: +46

POC: 0

Vendor Status

Debian

firefox

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

firefox-esr

Release	Status	Fixed Version	Urgency
bullseye	vulnerable	115.14.0esr-1~deb11u1	-
bullseye (security)	vulnerable	140.8.0esr-1~deb11u1	-
bookworm	vulnerable	128.14.0esr-1~deb12u1	-
bookworm (security)	vulnerable	140.8.0esr-1~deb12u1	-
trixie (security), trixie	vulnerable	140.8.0esr-1~deb13u1	-
forky, sid	vulnerable	140.8.0esr-1	-
(unstable)	fixed	(unfixed)	-

EUVD-2026-14845 vulnerability details – vuln.today

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EUVD-2026-14845

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Remediation

Analysis

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Priority Score

Vendor Status

Debian

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EUVD-2026-14845

CVSS Vector

Lifecycle Timeline

Tags

Description

Analysis

Remediation

Full analysis requires sign-in

Priority Score

Vendor Status

Debian

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External POC / Exploit Code