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Apple iOS CVE-2026-64700

| EUVDEUVD-2026-49439 CRITICAL
Use After Free (CWE-416)
2026-07-27 apple GHSA-m326-x84x-2rw2
Denial Of Service Use After Free Memory Corruption Apple Tvos Visionos Watchos Ios And Ipados
9.8
CVSS 3.1 · Vendor: apple
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Severity by source

Vendor (apple) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
6.2 MEDIUM

Local app execution, no privileges; only availability impact from system termination

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Jul 28, 2026 - 16:27 vuln.today
CVSS changed
Jul 28, 2026 - 16:22 NVD
9.8 (CRITICAL)
Patch available
Jul 27, 2026 - 21:17 EUVD
CVE Published
Jul 27, 2026 - 20:14 cve.org
UNKNOWN (no severity yet)
CVE Published
Jul 27, 2026 - 20:14 cve.org
CRITICAL 9.8

DescriptionCVE.org

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.

AnalysisAI

Local denial-of-service in Apple operating systems via a use-after-free vulnerability allows an app to cause unexpected system termination. Affected versions include iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. While the NVD assigns CVSS 9.8, the actual impact is limited to availability; no active exploitation or public exploit code is identified, and EPSS indicates very low exploitation probability (0.17%).

Technical ContextAI

The vulnerability is a use-after-free (CWE-416) in an unspecified kernel or system component, addressed by improved memory management. A use-after-free occurs when a program continues to use a pointer after the memory it points to has been freed, leading to potential memory corruption or system instability. Affected products, identified by CPE, include Apple's iOS and iPadOS, macOS, tvOS, visionOS, and watchOS operating systems across multiple major versions.

RemediationAI

Apply vendor patches: update to iOS and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. No workarounds are provided; device owners should enable automatic updates. The advisory URLs from Apple confirm these fixed versions. If immediate patching is not possible, restrict app installation to trusted sources to mitigate the risk of a malicious app exploiting this local-only vulnerability.

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CVE-2026-64700 vulnerability details – vuln.today
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