PT-2026-39839 · Apple · Macos Sonoma+5

Atul R · Published 2026-05-11 · Updated 2026-05-12 · CVE-2026-43653

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Medium

Base vector

AV:L/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 iOS versions prior to 26.5 iPadOS versions prior to 18.7.9 iPadOS versions prior to 26.5 macOS Sonoma versions prior to 14.8.7 macOS Tahoe versions prior to 26.5 tvOS versions prior to 26.5

Description An attacker on the local network may be able to cause a denial-of-service due to improper memory handling.

Recommendations Update iOS to version 18.7.9 or 26.5. Update iPadOS to version 18.7.9 or 26.5. Update macOS Sonoma to version 14.8.7. Update macOS Tahoe to version 26.5. Update tvOS to version 26.5.

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2026-43653

Affected Products

Apple Macos

Ios

Ipados

Macos Sonoma

Macos Tahoe

Tvos

References · 8

• https://support.apple.com/en-us/127111 · Vendor Advisory
• https://support.apple.com/en-us/127110 · Vendor Advisory
• https://support.apple.com/en-us/127115 · Vendor Advisory
• https://support.apple.com/en-us/127117 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43653 · Security Note
• https://support.apple.com/en-us/127118 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/2054058982822596806 · Twitter Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43653 · Note