PatchSiren cyber security CVE debrief
CVE-2026-64725 Apple CVE debrief
An executive overview of CVE-2026-64725: An out-of-bounds write issue was addressed with improved bounds checking in various Apple products, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. This issue could allow an app to cause a denial-of-service. The affected products and versions are 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. Limited information is available on the exact scope of affected systems and potential attack vectors. Further verification is needed to determine the full impact and to ensure systems are properly patched. Defenders should review system logs for potential denial-of-service attempts and verify patch deployment.
- Vendor
- Apple
- Product
- iOS and iPadOS
- CVSS
- HIGH 7.1
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-27
- Original CVE updated
- 2026-08-17
- Advisory published
- 2026-07-27
- Advisory updated
- 2026-08-17
Who should care
Users of Apple devices, particularly those using iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, should apply the available patches to prevent potential denial-of-service attacks. This includes administrators of managed environments who should prioritize patching affected systems and monitoring for potential security incidents. Security teams should review the CVE record and vendor advisories for detailed guidance on affected systems and mitigation strategies. Vulnerability management processes should be updated to include these patches in a timely manner. Additionally, defenders should be aware of the potential for denial-of-service attacks and review system logs for suspicious activity.
Technical summary
An out-of-bounds write issue was addressed with improved bounds checking in various Apple products, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. This issue could allow an app to cause a denial-of-service. The affected products and versions are 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. Users should ensure their systems are updated to these versions to prevent potential attacks.
Defensive priority
Apply available patches to prevent potential denial-of-service attacks.
Recommended defensive actions
- Apply patches for iOS, iPadOS, macOS, tvOS, visionOS, and watchOS
- Ensure systems are updated to 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
- Monitor system logs for potential denial-of-service attempts
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Evidence notes
The CVE record indicates an out-of-bounds write issue addressed with improved bounds checking in various Apple products. Limited information is available on the exact scope of affected systems and potential attack vectors. Further verification is needed to determine the full impact and to ensure systems are properly patched. Defenders should review system logs for potential denial-of-service attempts and verify patch deployment.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-64725 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-64725
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-64725 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-64725
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Mitigation or vendor reference
Unverified legacy reference
URL: https://support.apple.com/en-us/128066
[email protected] - Release Notes, Vendor Advisory
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Mitigation or vendor reference
Unverified legacy reference
URL: https://support.apple.com/en-us/128067
[email protected] - Release Notes, Vendor Advisory
-
Mitigation or vendor reference
Unverified legacy reference
URL: https://support.apple.com/en-us/128068
[email protected] - Release Notes, Vendor Advisory
-
Mitigation or vendor reference
Unverified legacy reference
URL: https://support.apple.com/en-us/128069
[email protected] - Release Notes, Vendor Advisory
-
Mitigation or vendor reference
Unverified legacy reference
URL: https://support.apple.com/en-us/128070
[email protected] - Release Notes, Vendor Advisory
-
Mitigation or vendor reference
Unverified legacy reference
URL: https://support.apple.com/en-us/128071
[email protected] - Release Notes, Vendor Advisory
-
Mitigation or vendor reference
Unverified legacy reference
URL: https://support.apple.com/en-us/128072
[email protected] - Release Notes, Vendor Advisory
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.