CVE-2025-24180Network attack vector

Cross-site WebAuthn credential claiming via suffix validation

Published Mar 31, 2025 · Updated Jul 8, 2026

Improper input validation in Apple products allows remote attackers to claim WebAuthn credentials through a malicious website. Authentication Services fails to reject a credential claim when the requesting and credential-bearing sites share a registrable suffix. The target must visit attacker-controlled web content, and the consequence is unauthorized use of credentials scoped to a different site.

CVSS severity8.1
High
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Apple products allows remote attackers to claim WebAuthn credentials through a malicious website. Authentication Services fails to reject a credential claim when the requesting and credential-bearing sites share a registrable suffix. The target must visit attacker-controlled web content, and the consequence is unauthorized use of credentials scoped to a different site.

The record

CVE
CVE-2025-24180
Published
Mar 31, 2025
Updated
Jul 8, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-601, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <18.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <18.4
Apple · visionOSversion=0 <2.4
Apple · Safariversion=0 <18.4
Apple · macOSversion=0 <15.4
Apple · watchOSversion=0 <11.4

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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