Description
The issue was addressed with improved input validation. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, watchOS 11.4. A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix.
Published: 2025-03-31
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: Credential Theft
Action: Patch immediately
AI Analysis

Impact

The vulnerability enables a malicious site to claim WebAuthn credentials that belong to another site sharing the same registrable suffix. The flaw is caused by insufficient input validation and is classified as CWE-601. An attacker could use this to impersonate a user on the victim site, potentially gaining access to the victim's accounts and compromising authentication confidentiality.

Affected Systems

Apple products Safari, iOS, iPadOS, macOS, visionOS, and watchOS are affected. Versions released before Safari 18.4, iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, and watchOS 11.4 contain the flaw.

Risk and Exploitability

The CVSS score of 8.1 indicates high severity, while the EPSS score of less than 1 % suggests low current exploitation likelihood and it is not listed in CISA’s KEV catalog. Attackers must host a site that shares a registrable suffix with the target domain and entice users to visit the site; if successful, the attacker could obtain WebAuthn credentials intended for a different site and thereby steal credentials.

Generated by OpenCVE AI on April 28, 2026 at 11:48 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the Apple security updates that include Safari 18.4, iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, and watchOS 11.4.
  • Enable automatic OS and browser updates so future credential‑handling patches are received promptly.
  • Until the update is applied, consider blocking or restricting access to domains that share registrable suffixes with trusted sites using network or browser filters.

Generated by OpenCVE AI on April 28, 2026 at 11:48 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2025-9009 The issue was addressed with improved input validation. This issue is fixed in Safari 18.4, visionOS 2.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4. A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix.
History

Tue, 28 Apr 2026 12:15:00 +0000

Type Values Removed Values Added
Title Malicious Website May Claim WebAuthn Credentials via Shared Registrable Suffix

Thu, 02 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved input validation. This issue is fixed in Safari 18.4, visionOS 2.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4. A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix. The issue was addressed with improved input validation. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, watchOS 11.4. A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix.
References

Mon, 03 Nov 2025 21:30:00 +0000

Type Values Removed Values Added
References

Mon, 03 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

Mon, 07 Apr 2025 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple ipados
Apple iphone Os
Apple macos
Apple safari
Apple visionos
CPEs cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
Vendors & Products Apple
Apple ipados
Apple iphone Os
Apple macos
Apple safari
Apple visionos

Tue, 01 Apr 2025 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-601
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 31 Mar 2025 22:45:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved input validation. This issue is fixed in Safari 18.4, visionOS 2.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4. A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix.
References

Subscriptions

Apple Ipados Iphone Os Macos Safari Visionos
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-04-02T18:16:09.225Z

Reserved: 2025-01-17T00:00:44.993Z

Link: CVE-2025-24180

cve-icon Vulnrichment

Updated: 2025-11-03T21:06:38.979Z

cve-icon NVD

Status : Modified

Published: 2025-03-31T23:15:17.083

Modified: 2026-04-02T19:19:14.173

Link: CVE-2025-24180

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T12:00:13Z

Weaknesses