PT-2026-39834 · Apple · Macos Tahoe+2

Peter Malone · Published 2026-05-11 · Updated 2026-05-11 · CVE-2026-39870

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions macOS Sequoia versions prior to 15.7.7 macOS Sonoma versions prior to 14.8.7 macOS Tahoe versions prior to 26.5

Description Processing a maliciously crafted image may corrupt process memory due to improper memory handling.

Recommendations Update macOS Sequoia to version 15.7.7. Update macOS Sonoma to version 14.8.7. Update macOS Tahoe to version 26.5.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2026-39870

Affected Products

Macos Sequoia

Macos Sonoma

Macos Tahoe

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-39870 · Security Note
• https://support.apple.com/en-us/127116 · Note
• https://support.apple.com/en-us/127117 · Note
• https://support.apple.com/en-us/127115 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-39870 · Note