PT-2026-65291 · Apple · Macos Sequoia+3

CVE-2026-64767 · Published 2026-07-27 · Updated 2026-07-28

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions macOS Sequoia versions prior to 15.7.8 macOS Sonoma versions prior to 14.8.8 macOS Tahoe versions prior to 26.6

Description A buffer overflow occurs due to insufficient bounds checking. A remote attacker could exploit this to cause unexpected system termination or corrupt kernel memory. A buffer overflow is a condition where a process writes more data to a block of memory than it can hold, potentially overwriting adjacent memory locations.

Recommendations Update macOS Sequoia to version 15.7.8. Update macOS Sonoma to version 14.8.8. Update macOS Tahoe to version 26.6.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2026-64767

Affected Products

Apple Macos

Macos Sequoia

Macos Sonoma

Macos Tahoe

References · 6

• https://support.apple.com/en-us/128072 · Vendor Advisory
• https://support.apple.com/en-us/128071 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-64767 · Security Note
• https://support.apple.com/en-us/128067 · Vendor Advisory
• https://t.me/cveNotify/226307 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-64767 · Note