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Findings

CVE-2023-32373

Apple Multiple Products WebKit Use-After-Free Vulnerability

Published May 22, 2023 · updated Jun 16, 2026 · apple safari

A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. 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.

Timeline

Detection, updates, and resolution for this record.

  1. May 22, 2023 · Catalog

    Detected

    A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. 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. May 22, 2023 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Jun 12, 2023 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. 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.

Required action

Apply updates per vendor instructions.

CISA due date Jun 12, 2023

Affected

  • cpe apple/ipadosversion unspecified
  • cpe apple/iphone osversion unspecified
  • cpe apple/macosversion unspecified
  • cpe apple/safariversion unspecified
  • cpe apple/tvosversion unspecified
  • cpe apple/watchosversion unspecified
  • cpe redhat/enterprise linux6.0
  • cpe webkitgtk/webkitgtk+version unspecified
  • vendor Apple Multiple Productsversion unspecified

Sources

  • CISA KEVCVE-2023-32373

    Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain a use-after-free 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.orgCVE-2023-32373

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2023-32373

    30-day exploitation probability 12.2%

    first.org
  • NIST NVDCVE-2023-32373

    A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing maliciously crafted web content may lead to arbitrary code exec

    nvd.nist.gov

References

CVE-2023-32373 · ZeroDay Findings