PT-2026-39843 · Apple · Ipados+7

Do Young Park · Published 2026-05-11 · Updated 2026-05-16 · CVE-2026-43658

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 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 Processing maliciously crafted web content may lead to an unexpected Safari crash due to improper memory handling.

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 visionOS to version 26.5. Update watchOS to version 26.5.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2026-43658

Affected Products

Apple Macos

Safari

Ios

Ipados

Macos Tahoe

Tvos

Visionos

Watchos

References · 10

• https://support.apple.com/en-us/127119 · Vendor Advisory
• https://support.apple.com/en-us/127115 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43658 · Security Note
• https://support.apple.com/en-us/127110 · Vendor Advisory
• https://support.apple.com/en-us/127118 · Vendor Advisory
• https://support.apple.com/en-us/127120 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43658 · Note
• https://twitter.com/f1tym1/status/2055626652420325388 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2054066662156947721 · Twitter Post
• https://support.apple.com/en-us/127121 · Note