PT-2026-27583 · Apple+3 · Ios+10

Published 2026-03-24 · Updated 2026-05-19 · CVE-2026-28859

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Safari versions prior to 26.4 iOS versions prior to 26.4 iPadOS versions prior to 26.4 macOS Tahoe versions prior to 26.4 tvOS versions prior to 26.4 visionOS versions prior to 26.4 watchOS versions prior to 26.4

Description A flaw exists due to improper memory handling. A malicious website may be able to process restricted web content outside of the intended security sandbox.

Recommendations Update Safari to version 26.4. Update iOS to version 26.4. Update iPadOS to version 26.4. Update macOS Tahoe to version 26.4. Update tvOS to version 26.4. Update visionOS to version 26.4. Update watchOS to version 26.4.

Fix

Memory Corruption

Out of bounds Read

Use After Free

Weakness Enumeration

CWE-787

CWE-125

CWE-416

Related Identifiers

ALSA-2026:10702

ALSA-2026:19206

ALSA-2026:9692

CVE-2026-28859

OPENSUSE-SU-2026:20518-1

RHSA-2026:10702

RHSA-2026:11329

RHSA-2026:11814

RHSA-2026:13845

RHSA-2026:14659

RHSA-2026:9692

SUSE-SU-2026:1364-1

SUSE-SU-2026:21180-1

USN-8237-1

Affected Products

Linuxmint

Apple Macos

Rocky Linux

Safari

Ubuntu

Ios

Ipados

Macos Tahoe

Tvos

Visionos

Watchos

References · 142

• https://ubuntu.com/security/CVE-2026-20644 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-20643 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-28871 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2026:9692 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:21180-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-20676 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2026:10702 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-28859 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-28859 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-9692.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1364-1 · Vendor Advisory
• https://support.apple.com/en-us/126794 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-20664 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-28859 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8237-1 · Vendor Advisory