Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-64691

A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 27.3%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-64691
  • Apple » Macos » Version: 26.0
    cpe:2.3:o:apple:macos:26.0
  • Apple » Macos » Version: 26.0.0
    cpe:2.3:o:apple:macos:26.0.0
  • Apple » Macos » Version: 26.1
    cpe:2.3:o:apple:macos:26.1
  • Apple » Macos » Version: 26.2
    cpe:2.3:o:apple:macos:26.2
  • Apple » Macos » Version: 26.3
    cpe:2.3:o:apple:macos:26.3
  • Apple » Macos » Version: 26.3.1
    cpe:2.3:o:apple:macos:26.3.1
  • Apple » Macos » Version: 26.4
    cpe:2.3:o:apple:macos:26.4
  • Apple » Macos » Version: 26.5
    cpe:2.3:o:apple:macos:26.5
  • Apple » Macos » Version: 26.5.2
    cpe:2.3:o:apple:macos:26.5.2


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