CVE-2026-43705Network attack vector

Memory corruption via WebKit type confusion

Published Jun 29, 2026 · Updated Jun 29, 2026

Type confusion in Apple Safari, iOS, iPadOS, and macOS before 26.5.2 allows remote attackers to corrupt memory via crafted web content. Apple has not disclosed which WebKit object is assigned an incompatible type or what missing check permits the confusion. User interaction is required to process attacker-controlled content; the bounded reported consequence is memory corruption.

CVSS severity8.8
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in Apple Safari, iOS, iPadOS, and macOS before 26.5.2 allows remote attackers to corrupt memory via crafted web content. Apple has not disclosed which WebKit object is assigned an incompatible type or what missing check permits the confusion. User interaction is required to process attacker-controlled content; the bounded reported consequence is memory corruption.

The record

CVE
CVE-2026-43705
Published
Jun 29, 2026
Updated
Jun 29, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-843
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 29, 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 <26.5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <26.5.2
Apple · Safariversion=0 <26.5.2
Apple · macOSversion=0 <26.5.2

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

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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-843Access of Resource Using Incompatible Type ('Type Confusion')

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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