Is CVE-2023-32439 being actively exploited?

Yes. CVE-2023-32439 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on June 23, 2023.

What is the CVSS score for CVE-2023-32439?

CVE-2023-32439 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2023-32439

HIGH · CVSS 8.8CISA KEV: actively exploitedEPSS 24.0%EU EUVD: exploited

A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-843
EPSS score: 24.0% (98th percentile)
In CISA KEV: Yes, added June 23, 2023
In EU EUVD: Yes (EUVD-2023-36683)
Published: June 23, 2023
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Apple Multiple Products WebKit Type Confusion Vulnerability

Added to the KEV catalog on June 23, 2023; federal remediation due July 14, 2023.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2023-36683 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 21, 2025.

View on the EU Vulnerability Database

Affected products

apple / ipados
apple / iphone os
apple / macos
apple / safari
webkitgtk / webkitgtk+

Certified products that may be affected

13 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Strong Customer Authentication for Apple Pay, on MacBook Air 2022 with M2 running macOS Ventura 13.3.1 - Apple Inc. - Common Criteria 2023-9-INF-4307 - active
Strong Customer Authentication for Apple Pay on iPhone 14 Pro with A16 Bionic running iOS 16.4.1Version iOS 16.4.1 (build 20E252) ( ANSSI-CC-2023/59) - Apple Inc. - Common Criteria ANSSI-CC-2023/59 - active
Strong Customer Authentication for Apple Pay on Mac mini with M2 and Magic keyboard with Touch ID, running macOS Ventura 13.3.1 , macOS Ventura 13.3.1 (build 22E261) ( ANSSI-CC-2023/61) - Apple Inc. - Common Criteria ANSSI-CC-2023/61 - active
Strong Customer Authentication for Apple Pay on iPhone SE (3rd generation) with A15 Bionic running iOS 16.4.1iOS 16.4.1 (build 20E252) (ANSSI-CC-2023/58) - Apple Inc. - Common Criteria ANSSI-CC-2023/58 - active
Strong Customer Authentication pour Apple Pay sur iPhone SE (2nde génération) avec A13 Bionic exécutant iOS 15.4.1 (Version 15.4.1 (build 19E258)) - Apple Inc. - Common Criteria ANSSI-CC-2023/15 - active

See all 13 in the Security Certifications Explorer.

References

https://security.gentoo.org/glsa/202401-04(Third Party Advisory)
https://support.apple.com/en-us/HT213811(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/HT213813(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/HT213814(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/HT213816(Release Notes, Vendor Advisory)
https://support.apple.com/kb/HT213814(Vendor Advisory)
https://support.apple.com/kb/HT213816(Vendor Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32439(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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