PT-2026-65178 · Apple · Macos Sequoia+2

CVE-2026-43774 · Published 2026-07-27 · Updated 2026-07-27

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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 An out-of-bounds read occurs due to insufficient bounds checking, which could allow an application to access sensitive user data. An out-of-bounds read is a condition where a program reads data past the end or before the beginning of the intended buffer.

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

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-43774

Affected Products

Macos Sequoia

Macos Sonoma

Macos Tahoe

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-43774 · Security Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43774 · Note
• https://support.apple.com/en-us/128072 · Note
• https://support.apple.com/en-us/128067 · Note
• https://support.apple.com/en-us/128071 · Note