PT-2026-39846 · Apple · Ios+5

Published 2026-05-11 · Updated 2026-05-25 · CVE-2026-43661

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions iOS versions prior to 26.5 iPadOS versions prior to 26.5 macOS Tahoe versions prior to 26.5 tvOS versions prior to 26.5 watchOS versions prior to 26.5

Description A buffer overflow occurs when a program writes more data to a memory buffer than it can hold, potentially overwriting adjacent memory. Processing a maliciously crafted image may corrupt process memory.

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

Fix

DoS

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2026-43661

Affected Products

Apple Macos

Ios

Ipados

Macos Tahoe

Tvos

Watchos

References · 8

• https://support.apple.com/en-us/127115 · Vendor Advisory
• https://support.apple.com/en-us/127110 · Vendor Advisory
• https://support.apple.com/en-us/127118 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43661 · Security Note
• https://support.apple.com/en-us/127119 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43661 · Note
• https://twitter.com/bellis1000/status/2058954301104373853 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2054079460295516370 · Twitter Post