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PatchSiren cyber security CVE debrief

CVE-2026-64693 Apple CVE debrief

A type confusion issue was addressed with improved checks. 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. Processing a maliciously crafted image may lead to a denial-of-service attack. The issue is related to image processing and can be triggered by a malicious image. Administrators and users should apply patches from Apple for affected products and restrict image processing to trusted sources.

Vendor
Apple
Product
iOS and iPadOS
CVSS
MEDIUM 5.5
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

Administrators and users of Apple products, especially those using iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, should be aware of this vulnerability and take necessary precautions. This includes applying patches from Apple for affected products, restricting image processing to trusted sources, and monitoring systems for unusual activity. Additionally, security teams should review the official advisories for more information on the vulnerability and mitigation strategies.

Technical summary

A type confusion issue was addressed with improved checks in various Apple products, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. Processing a maliciously crafted image may lead to a denial-of-service attack. The 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. Defenders should focus on restricting image processing to trusted sources and monitoring systems for unusual activity.

Defensive priority

Medium priority due to potential for denial-of-service attacks

Recommended defensive actions

  • Apply patches from Apple for affected products
  • Restrict image processing to trusted sources
  • Monitor systems for unusual activity
  • 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 and NVD entry provide details on the type confusion issue and affected products. However, further analysis is needed to fully understand the vulnerability's impact. The issue is addressed 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. Administrators should verify the patch status of these products. Additionally, defenders should review the official advisories for more information on the vulnerability and mitigation strategies.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-27T21:17:08.993Z and has not been modified since then.