What is the CVSS score of CVE-2025-30466?

CVE-2025-30466 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of Apple are affected by CVE-2025-30466?

Organizations using This face critical risk from CVE-2025-30466 rated CVSS 9.8. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems.

How to fix or mitigate CVE-2025-30466?

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

Apple CVE-2025-30466

CRITICAL

Origin Validation Error (CWE-346)

2025-05-29 product-security@apple.com

Apple Authentication Bypass

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

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

Analysis Generated

Mar 28, 2026 - 18:44 vuln.today

CVE Published

May 29, 2025 - 22:15 nvd

CRITICAL 9.8

DescriptionCVE.org

This issue was addressed through improved state management. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, visionOS 2.4, macOS Sequoia 15.4. A website may be able to bypass Same Origin Policy.

AnalysisAI

This issue was addressed through improved state management. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-346. This issue was addressed through improved state management. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, visionOS 2.4, macOS Sequoia 15.4. A website may be able to bypass Same Origin Policy. Affected products include: Apple Safari, Apple Ipados, Apple Iphone Os, Apple Macos, Apple Visionos.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.