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Unrated severityNVD Advisory· Published Jun 23, 2023· Updated Dec 4, 2024

CVE-2023-32420

CVE-2023-32420

Description

CVE-2023-32420 is an out-of-bounds read in Apple OS kernels that could allow an app to cause system termination or read kernel memory.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

CVE-2023-32420 is an out-of-bounds read in Apple OS kernels that could allow an app to cause system termination or read kernel memory.

Vulnerability

CVE-2023-32420 is an out-of-bounds read vulnerability in the kernel of multiple Apple operating systems. The issue exists in iOS 16.5 and iPadOS 16.5, watchOS 9.5, tvOS 16.5, and macOS Ventura 13.4 [1][2][3][4]. It was addressed with improved input validation.

Exploitation

An attacker would need to have the ability to run a malicious app on the affected device. No additional privileges or user interaction beyond installing and running the app are required. The app can trigger the out-of-bounds read by sending crafted input to the kernel [1].

Impact

Successful exploitation could lead to unexpected system termination (denial of service) or reading kernel memory, which may expose sensitive information [1]. The impact combines denial of service with a potential information disclosure.

Mitigation

Apple fixed this issue in the following releases, all published on May 18, 2023: iOS 16.5 and iPadOS 16.5, watchOS 9.5, tvOS 16.5, and macOS Ventura 13.4 [1][2][3][4]. Users should update to the latest available versions. No workarounds are documented.

References
  1. About the security content of macOS Ventura 13.4 - Apple Support
  2. About the security content of iOS 16.5 and iPadOS 16.5 - Apple Support
  3. About the security content of tvOS 16.5 - Apple Support
  4. About the security content of watchOS 9.5 - Apple Support

AI Insight generated on May 25, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.

Affected products

7

Patches

0

No patches discovered yet.

Vulnerability mechanics

No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.

References

4

News mentions

0

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