CVE-2026-84518Network attack vector

Installed-app disclosure via flawed state management

Published Sep 14, 2026 · Updated Sep 14, 2026

Information disclosure in Safari across iOS, iPadOS, and macOS before 27 allows remote attackers to identify installed apps via a malicious website. Apple attributes the exposure to incorrect state management but has not disclosed the responsible state or operation that leaks the application-presence signal. Visiting a malicious website is required, and the reported consequence is limited to learning which apps are installed.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Safari across iOS, iPadOS, and macOS before 27 allows remote attackers to identify installed apps via a malicious website. Apple attributes the exposure to incorrect state management but has not disclosed the responsible state or operation that leaks the application-presence signal. Visiting a malicious website is required, and the reported consequence is limited to learning which apps are installed.

The record

CVE
CVE-2026-84518
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
T1518
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 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 <27

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <27
Apple · Safariversion=0 <27
Apple · macOSversion=0 <27

Published CVSS scores

No CVSS assessment is available in this record.

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

T1518Software Discovery

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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