PT-2026-39789 · Apple · Macos Sequoia+4

Yiğit Can Yilmaz + 1 · Published 2026-05-11 · Updated 2026-05-11 · CVE-2026-28929

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 iOS versions prior to 18.7.9 iPadOS versions prior to 18.7.9 macOS Sequoia versions prior to 15.7.7 macOS Sonoma versions prior to 14.8.7 macOS Tahoe versions prior to 26.5

Description A logic issue exists where replying to an email could cause remote images to be displayed in Mail while in Lockdown Mode, which is a security setting that strictly limits certain functionalities to reduce the attack surface.

Recommendations Update iOS to version 18.7.9. Update iPadOS to version 18.7.9. Update macOS Sequoia to version 15.7.7. Update macOS Sonoma to version 14.8.7. Update macOS Tahoe to version 26.5.

Fix

Weakness Enumeration

CWE-1254

Related Identifiers

CVE-2026-28929

Affected Products

Ios

Ipados

Macos Sequoia

Macos Sonoma

Macos Tahoe

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-28929 · Security Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-28929 · Note
• https://support.apple.com/en-us/127117 · Note
• https://support.apple.com/en-us/127116 · Note
• https://support.apple.com/en-us/127111 · Note
• https://support.apple.com/en-us/127115 · Note