CVE-2026-20699

Summary

A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, macOS Tahoe 26.4. An app may be able to access user-sensitive data.

Affected Software

VendorProductVersion RangeStatus
ApplemacOS0 < 14.8.5affected
ApplemacOS0 < 15.7.5affected
ApplemacOS0 < 26.3affected
ApplemacOS0 < 26.4affected

Weaknesses

  • An app may be able to access user-sensitive data

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References