ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2023-32439

Apple Multiple Products WebKit Type Confusion Vulnerability

Published Jun 21, 2023 · catalog updated Jun 16, 2026 · Apple Multiple Products

Patch now

CVE-2023-32439 is in the CISA known-exploited catalog, due Jul 14, 2023. Confirm Apple Multiple Products against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High8.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
23.97%
Remediation
Remediation guidance
Affected products
cpe apple/ipados · cpe apple/iphone os · cpe apple/macos · cpe apple/safari · cpe webkitgtk/webkitgtk+ · vendor Apple Multiple Products

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apple/ipadosversion unspecified
  • cpe apple/iphone osversion unspecified
  • cpe apple/macosversion unspecified
  • cpe apple/safariversion unspecified
  • cpe webkitgtk/webkitgtk+version unspecified
  • vendor Apple Multiple Productsversion unspecified

How to fix CVE-2023-32439

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-32439 is in the CISA known-exploited catalog, due Jul 14, 2023. Confirm Apple Multiple Products against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-843: Access of Resource Using Incompatible Type (Type Confusion). EPSS 23.97%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 23, 2023 · Catalog

    Detected

    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.

  2. Jun 23, 2023 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Jul 14, 2023 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-2023-32439

    Apple iOS, iPadOS, macOS, and Safari WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2023-32439

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-32439

    30-day exploitation probability 24.0%

    first.org
  • NIST NVDVulnerability recordCVE-2023-32439

    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

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2023-32439

    Apple iOS, iPadOS, macOS, and Safari WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple p

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.