CVE-2026-43703

Memory Handling Bug Causing Process Crashes via Malicious Web Content

Published Jun 29, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Memory Handling Bug Causing Process Crashes via Malicious Web Content
Type Values Removed Values Added
Title Memory Handling Bug Causes Unexpected Process Crash in Apple iOS, iPadOS, and macOS
Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash. The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.
References
Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Type Values Removed Values Added
Title Memory Handling Bug Causes Unexpected Process Crash in Apple iOS, iPadOS, and macOS
Type Values Removed Values Added
Title Browser Content Handling Crash in iOS, iPadOS, and macOS
Weaknesses CWE-119
Type Values Removed Values Added
Weaknesses CWE-125
CWE-787
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Browser Content Handling Crash in iOS, iPadOS, and macOS
Weaknesses CWE-119
Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Jul 27, 2026, 8:12 PM
Reserved
May 1, 2026, 10:46 PM
Status
Modified
Published
Jun 29, 2026, 8:17 PM
Modified
Jul 27, 2026, 9:16 PM