CVE-2025-43493Network attack vector

Address bar spoofing via insufficient origin checks

Published Nov 4, 2025 · Updated Nov 4, 2025

Address bar spoofing in Apple Safari before 26.1 allows remote attackers to misrepresent a website's origin on iOS, iPadOS, macOS, and visionOS. Safari's address-bar presentation logic applies insufficient checks to attacker-controlled web content; Apple has not disclosed the specific state or input that evades validation. A user must visit a malicious website, after which the false origin can make attacker-controlled content appear associated with a trusted site; no code execution or data disclosure is reported.

CVSS severity4.3
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Address bar spoofing in Apple Safari before 26.1 allows remote attackers to misrepresent a website's origin on iOS, iPadOS, macOS, and visionOS. Safari's address-bar presentation logic applies insufficient checks to attacker-controlled web content; Apple has not disclosed the specific state or input that evades validation. A user must visit a malicious website, after which the false origin can make attacker-controlled content appear associated with a trusted site; no code execution or data disclosure is reported.

The record

CVE
CVE-2025-43493
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

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 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-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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