PT-2026-39817 · Apple · Macos Sequoia+6

Andy Koo + 1 · Published 2026-05-11 · Updated 2026-05-11 · CVE-2026-28974

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 26.5 iPadOS versions prior to 26.5 macOS Sequoia versions prior to 15.7.7 macOS Tahoe versions prior to 26.5 tvOS versions prior to 26.5 visionOS versions prior to 26.5 watchOS versions prior to 26.5

Description An app may be able to cause a denial-of-service, a condition where a system or service becomes unavailable to its intended users. The issue stems from insufficient checks to prevent unauthorized actions.

Recommendations Update iOS to version 26.5. Update iPadOS to version 26.5. Update macOS Sequoia to version 15.7.7. Update macOS Tahoe to version 26.5. Update tvOS to version 26.5. Update visionOS to version 26.5. Update watchOS to version 26.5.

Fix

DoS

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2026-28974

Affected Products

Ios

Ipados

Macos Sequoia

Macos Tahoe

Tvos

Visionos

Watchos

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-28974 · Security Note
• https://support.apple.com/en-us/127116 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-28974 · Note
• https://support.apple.com/en-us/127120 · Note
• https://support.apple.com/en-us/127115 · Note
• https://support.apple.com/en-us/127119 · Note
• https://support.apple.com/en-us/127118 · Note
• https://support.apple.com/en-us/127110 · Note