CVE-2026-20650
Analyzed Analyzed - Analysis Complete
Denial-of-Service via Crafted Bluetooth Packets in Apple OS

Publication date: 2026-02-11

Last updated on: 2026-04-02

Assigner: Apple Inc.

Description
A denial-of-service issue was addressed with improved validation. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker in a privileged network position may be able to perform denial-of-service attack using crafted Bluetooth packets.
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Meta Information
Published
2026-02-11
Last Modified
2026-04-02
Generated
2026-06-16
AI Q&A
2026-02-12
EPSS Evaluated
2026-06-15
NVD
CVE-2026-20650
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
apple ipados to 26.3 (exc)
apple iphone_os to 26.3 (exc)
apple macos to 26.3 (exc)
apple tvos to 26.3 (exc)
apple visionos to 26.3 (exc)
apple watchos to 26.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.
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Executive Summary

This vulnerability is a denial-of-service (DoS) issue related to Bluetooth communication. It occurs because of insufficient validation of Bluetooth packets, which allows an attacker positioned within a privileged network role to send specially crafted Bluetooth packets that can disrupt normal device operation.

The issue has been addressed by improving validation mechanisms in affected Apple operating systems, including watchOS, tvOS, macOS Tahoe, visionOS, iOS, and iPadOS, all fixed in version 26.3.

Impact Analysis

This vulnerability can impact you by allowing an attacker in a privileged network position to cause a denial-of-service condition on your device. This means the attacker could disrupt the normal functioning of your device by sending malicious Bluetooth packets, potentially causing the device to become unresponsive or otherwise impaired.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

To mitigate this vulnerability, update affected Apple operating systems to version 26.3 or later. This includes watchOS, tvOS, macOS Tahoe, visionOS, iOS, and iPadOS.

  • Apply watchOS 26.3 update on Apple Watch devices.
  • Apply tvOS 26.3 update on Apple TV devices.
  • Apply macOS Tahoe 26.3 update on Mac devices.
  • Apply visionOS 26.3 update on visionOS devices.
  • Apply iOS 26.3 update on iPhone devices.
  • Apply iPadOS 26.3 update on iPad devices.
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