by Kastro
Paper/Archive/CVE-2026-64767

CVE-2026-64767

Apple macOS — A buffer overflow was addressed with improved bounds checking.

EPSS 0.9%CVSS 9.8
critical.is priorityof 100
41
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 59.4.594 × 2011.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sequoia 15.8.2, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

Affected

ProductAffectedFixed inSource
macOS< 14.8.814.8.8CNA
macOS< 15.7.815.7.8CNA
macOS< 15.8.215.8.2CNA
macOS< 26.626.6CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refsupport.apple.com/en-us/128067refsupport.apple.com/en-us/128071refsupport.apple.com/en-us/128072refsupport.apple.com/en-us/149523