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PatchSiren cyber security CVE debrief

CVE-2016-4692 Apple CVE debrief

CVE-2016-4692 is a high-severity Apple WebKit memory-corruption issue that could be triggered by a crafted website. In affected products, a remote attacker could potentially execute arbitrary code or cause a denial of service through an application crash. The CVE record was published on 2017-02-20, and the NVD entry lists Apple-linked advisories and affected version ranges for iOS, Safari, iCloud, and iTunes.

Vendor
Apple
Product
Unknown
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-20
Original CVE updated
2026-05-13
Advisory published
2017-02-20
Advisory updated
2026-05-13

Who should care

Apple device and application administrators, enterprise mobility teams, browser/security engineers, and end users running affected iOS, Safari, iCloud, or iTunes versions should treat this as a priority patch item. Teams responsible for WebKit-based browsing exposure should also review deployment status.

Technical summary

NVD classifies the weakness as CWE-119 and assigns CVSS 3.0 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). The issue is in WebKit and is reachable via a crafted web site, meaning the attack surface is client-side and depends on user interaction. The impact includes memory corruption, possible arbitrary code execution, and application crash/denial of service. The NVD record notes affected Apple products and version ranges across iOS, Safari, iCloud, and iTunes.

Defensive priority

High — prioritize patching affected Apple clients and browser-facing surfaces.

Recommended defensive actions

  • Update iOS to 10.2 or later on affected devices.
  • Update Safari to 10.0.2 or later on affected systems.
  • Update iCloud to 6.1 or later where applicable.
  • Update iTunes to 12.5.4 or later where applicable.
  • Verify fleet inventory for Apple products that include WebKit exposure and confirm patched versions are deployed.
  • Until remediation is complete, reduce exposure to untrusted web content on affected systems and monitor for crashes or instability in browser-facing applications.

Evidence notes

All substantive claims here come from the supplied NVD record and its referenced Apple-linked advisories. The NVD description states iOS before 10.2, Safari before 10.0.2, iCloud before 6.1, and iTunes before 12.5.4; the CPE criteria in the same record enumerate end versions of 10.1.1, 10.0.1, 6.0.1, and 12.5.3 respectively. That version-range mismatch is noted in the evidence rather than resolved here. NVD also lists CVSS 8.8 high and CWE-119.

Sources and references

Verified primary and authoritative sources

  • CVE-2016-4692 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2016-4692

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

  • CVE-2016-4692 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2016-4692

    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.