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CVE-2026-43715 Apple CVE debrief

A use-after-free issue was addressed with improved memory management in multiple Apple operating systems and Safari. This vulnerability, CVE-2026-43715, could potentially lead to memory corruption when processing maliciously crafted web content. Users of Apple products, particularly those using Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, should apply the latest security updates to prevent potential memory corruption.

Vendor
Apple
Product
Safari
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-29
Original CVE updated
2026-07-27
Advisory published
2026-06-29
Advisory updated
2026-07-27

Who should care

Users of Apple products, particularly those using Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, should apply the latest security updates to prevent potential memory corruption from maliciously crafted web content. IT administrators and security teams responsible for managing Apple devices and ensuring their security should prioritize updating these systems.

Technical summary

The CVE-2026-43715 vulnerability involves a use-after-free issue that was addressed through improved memory management in Apple operating systems and Safari. This issue could potentially lead to memory corruption when processing maliciously crafted web content. The vulnerability affects Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Users should verify affected product deployments, review official advisories, and plan vendor-supported updates or mitigations. Defenders should be cautious when processing web content from untrusted sources and review compensating controls for exposed systems while remediation is scheduled and verified.

Defensive priority

High

Recommended defensive actions

  • Apply the latest security updates for Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS.
  • Ensure that all Apple devices are updated to the latest versions: Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6.
  • Be cautious when processing web content from untrusted sources.
  • 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 was published on 2026-06-29T20:17:36.173Z and was last modified on 2026-07-27T21:16:55.620Z. The NVD entry is currently Modified. This use-after-free issue affects multiple Apple operating systems and Safari, potentially leading to memory corruption when processing maliciously crafted web content. Defenders should verify affected product deployments, review official advisories, and plan vendor-supported updates or mitigations.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-43715 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-43715

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

  • CVE-2026-43715 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-43715

    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.