CVE-2023-32439Known exploitationNetwork attack vector

Code execution via WebKit type confusion

Published Jun 23, 2023 · Updated Oct 21, 2025

Type confusion in Apple WebKit allows remote attackers to execute arbitrary code by supplying maliciously crafted web content. Apple identifies the locus only as WebKit and states that improved checks correct the type confusion; no public source identifies the affected function or incorrect type transition. Exploitation requires a user or WebKit client to process attacker-controlled content, after which code runs in the affected process context.

CVSS severity8.8
High
EPSS probability23.79%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in Apple WebKit allows remote attackers to execute arbitrary code by supplying maliciously crafted web content. Apple identifies the locus only as WebKit and states that improved checks correct the type confusion; no public source identifies the affected function or incorrect type transition. Exploitation requires a user or WebKit client to process attacker-controlled content, after which code runs in the affected process context.

The record

CVE
CVE-2023-32439
Published
Jun 23, 2023
Updated
Oct 21, 2025
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-843, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 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 <15.7
  2. Affected versionversion=unspecified <16.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <15.7; version=unspecified <16.5
Apple · Safariversion=unspecified <16.5
Apple · macOSversion=unspecified <13.4

Published CVSS scores

8.8NIST National Vulnerability DatabaseCVSS: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.

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 exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-843Use of Incorrectly-Resolved Name or Reference
T1203Exploitation for Client Execution

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.

Reported exploitation

Technologies

Your stack

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Your stack

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