PT-2026-65153 · Apple · Watchos+5

CVE-2026-43739 · Published 2026-07-27 · Updated 2026-07-27

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions iOS versions prior to 26.6 iPadOS versions prior to 26.6 macOS Tahoe versions prior to 26.6 tvOS versions prior to 26.6 visionOS versions prior to 26.6 watchOS versions prior to 26.6

Description An out-of-bounds write issue exists where an application can write data past the end of a defined memory buffer. This can lead to unexpected system termination.

Recommendations Update iOS to version 26.6. Update iPadOS to version 26.6. Update macOS Tahoe to version 26.6. Update tvOS to version 26.6. Update visionOS to version 26.6. Update watchOS to version 26.6.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-43739

Affected Products

Ios

Ipados

Macos Tahoe

Tvos

Visionos

Watchos

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-43739 · Security Note
• https://support.apple.com/en-us/128069 · Note
• https://support.apple.com/en-us/128068 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43739 · Note
• https://support.apple.com/en-us/128066 · Note
• https://support.apple.com/en-us/128067 · Note
• https://support.apple.com/en-us/128070 · Note