Is CVE-2016-4657 actively exploited?

CVE-2016-4657 has no public evidence of in-the-wild exploitation as of 2025-10-22.

What is the CVSS score for CVE-2016-4657?

CVE-2016-4657 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2016-4657?

Patch guidance is available from apple security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2016-4657.

Fix CVE-2016-4657 - HIGH apple iphone os

Description

WebKit in Apple iOS before 9.3.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-787 · Out-of-bounds Write CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: APPLE
Published: 8/25/2016
Last Modified: 10/22/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2016-4657

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary