What is the CVSS score of EUVD-2026-14804?

EUVD-2026-14804 has a CVSS 3.1 base score of 8.6 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Red Hat are affected by EUVD-2026-14804?

Organizations using the XPCOM component. This vulnerability affects Firefox face significant risk from CVE-2026-4690, a integer overflow vulnerability rated CVSS 8.6.. A patch is available.

Red Hat EUVD-2026-14804

Q: How to fix or mitigate EUVD-2026-14804?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

| CVE-2026-4690 HIGH

Integer Overflow or Wraparound (CWE-190)

2026-03-24 mozilla

GHSA-r7ww-hwqf-cqr6

Buffer Overflow Integer Overflow Red Hat Mozilla Suse

8.6

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

EUVD ID Assigned

Mar 24, 2026 - 12:45 euvd

EUVD-2026-14804

Analysis Generated

Mar 24, 2026 - 12:45 vuln.today

CVE Published

Mar 24, 2026 - 12:30 nvd

HIGH 8.6

DescriptionNVD

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, and Firefox ESR < 140.9.

AnalysisAI

A sandbox escape vulnerability exists in Mozilla Firefox due to incorrect boundary conditions and integer overflow within the XPCOM component, allowing attackers to break out of the browser's security sandbox and potentially execute arbitrary code with elevated privileges. Firefox versions below 149, Firefox ESR below 115.34, and Firefox ESR below 140.9 are affected. …

RemediationAI

Within 7 days: Identify all affected systems and apply vendor patches promptly. 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

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Vendor StatusVendor

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-2026-14804 vulnerability details – vuln.today

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Red Hat EUVD-2026-14804

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

Full analysis requires sign-in

More from same product – last 7 days

Vendor StatusVendor

Debian

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External POC / Exploit Code