CVE-2025-43503Network attack vector

User interface spoofing via inconsistent state

Published Nov 4, 2025 · Updated Nov 4, 2025

User interface spoofing in Safari on Apple operating systems before 26.1 allows remote attackers to deceive users through a malicious website. Apple has not disclosed which Safari user-interface state becomes inconsistent or how page content triggers the faulty state transition. Exploitation requires a user to visit an attacker-controlled site; the documented consequence is UI spoofing, not code execution or data access.

CVSS severity4.3
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

User interface spoofing in Safari on Apple operating systems before 26.1 allows remote attackers to deceive users through a malicious website. Apple has not disclosed which Safari user-interface state becomes inconsistent or how page content triggers the faulty state transition. Exploitation requires a user to visit an attacker-controlled site; the documented consequence is UI spoofing, not code execution or data access.

The record

CVE
CVE-2025-43503
Published
Nov 4, 2025
Updated
Nov 4, 2025
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-290, T1036
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record 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=unspecified <26.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <26.1
Apple · visionOSversion=unspecified <26.1
Apple · Safariversion=unspecified <26.1
Apple · watchOSversion=unspecified <26.1

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1036Masquerading

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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