CVE-2026-64739: An attacker may be able to cause unexpected app termination in Apple iOS and iPadOS
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, 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 attacker may be able to cause unexpected app termination.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-64739) involves an out-of-bounds write condition in Apple iOS and iPadOS that may lead to unexpected application termination. The issue was resolved by Apple through improved bounds checking and is fixed in iOS 26.6, iPadOS 26.6, and other Apple operating system versions including macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The CVSS v3.1 score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability. No public exploits have been reported.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to cause unexpected termination of applications on affected Apple devices, potentially disrupting normal operations and impacting confidentiality, integrity, and availability of affected apps.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 26.6 and iPadOS 26.6, among other OS versions. Users and administrators should apply these updates promptly to remediate the issue. Since this is not a cloud service, remediation depends on applying the vendor-provided OS updates. Patch status is confirmed by the vendor advisory indicating fixed versions.
CVE-2026-64739: An attacker may be able to cause unexpected app termination in Apple iOS and iPadOS
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, 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 attacker may be able to cause unexpected app termination.
CVSS v3.1
Score 8.8high
Affected software
Apple
iOS and iPadOS
Apple
macOS
Apple
tvOS
Apple
visionOS
Apple
watchOS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-64739) involves an out-of-bounds write condition in Apple iOS and iPadOS that may lead to unexpected application termination. The issue was resolved by Apple through improved bounds checking and is fixed in iOS 26.6, iPadOS 26.6, and other Apple operating system versions including macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The CVSS v3.1 score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability. No public exploits have been reported.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to cause unexpected termination of applications on affected Apple devices, potentially disrupting normal operations and impacting confidentiality, integrity, and availability of affected apps.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 26.6 and iPadOS 26.6, among other OS versions. Users and administrators should apply these updates promptly to remediate the issue. Since this is not a cloud service, remediation depends on applying the vendor-provided OS updates. Patch status is confirmed by the vendor advisory indicating fixed versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-07-20T18:09:54.848Z
- State
- PUBLISHED
Threat ID: 6a67c1c49c2644c7f8cb14a9
Added to database: 07/27/2026, 20:38:28 UTC
Last enriched: 07/29/2026, 23:49:08 UTC
Last updated: 09/11/2026, 22:08:27 UTC
Views: 61
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