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9.8 Critical

CVE-2026-39873 The issue was addressed with improved memory handling

Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Connecting to a malicious SMB server may lead to unexpected system termination.

Affected products and versions

Product Affected versions Fixed in
macOS 26.6 earliest → < 26.6 26.6
macOS 15.7 earliest → < 15.7.8 15.7.8
macOS 14.8 earliest → < 14.8.8 14.8.8

References

Timeline

  1. Published
  2. Last modified

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