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PatchSiren cyber security CVE debrief

CVE-2026-65335 Apple CVE debrief

Apple addressed an issue in multiple products through improved state management, fixing a problem that could lead to an unexpected Safari crash when processing maliciously crafted web content. This issue, identified as CVE-2026-65335, affects various Apple products including Safari, iOS, iPadOS, macOS, and visionOS. The vulnerability could allow an attacker to cause a denial-of-service condition through a maliciously crafted web page. Defenders should assess their exposure, especially for systems that process untrusted web content, and apply patches as provided by Apple.

Vendor
Apple
Product
Safari
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-17
Original CVE updated
2026-09-14
Advisory published
2026-08-17
Advisory updated
2026-09-14

Who should care

Defenders responsible for managing Apple devices and Safari, especially those exposed to untrusted web content, should assess their exposure and apply patches. This includes administrators of iOS, iPadOS, macOS, and visionOS systems.

Why it matters

CVE-2026-65335 is a medium-severity vulnerability in Apple products that could lead to unexpected Safari crashes when processing malicious web content. Defenders should prioritize patching and monitoring systems exposed to untrusted web content.

  • Defenders need to verify patch deployment to prevent potential crashes.
  • Systems exposed to untrusted web content are at higher risk.
  • Unexpected Safari crashes could indicate exploitation attempts.
  • Further verification is required to determine the full scope of affected versions and potential impact.

Technical summary

The vulnerability, addressed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, and visionOS 27, involves an issue with state management that could lead to an unexpected Safari crash when processing maliciously crafted web content. This issue was addressed through improved state management. The vulnerability could allow an attacker to cause a denial-of-service condition through a maliciously crafted web page. Defenders should prioritize verifying and applying the provided patches for Safari, iOS, iPadOS, macOS, and visionOS, focusing on systems exposed to untrusted web content.

Defensive priority

Defenders should prioritize verifying and applying the provided patches for Safari, iOS, iPadOS, macOS, and visionOS, focusing on systems exposed to untrusted web content.

Recommended defensive actions

  • Verify and apply patches for Safari, iOS, iPadOS, macOS, and visionOS.
  • Inventory systems exposed to untrusted web content and prioritize patching.
  • Monitor for unexpected Safari crashes as an indicator of potential exploitation 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 and NVD entry provide details on the vulnerability and affected products. Apple has released patches for the issue, which is described as a problem with state management that could lead to a Safari crash.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-65335 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-65335

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-65335 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-65335

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

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.