CVE Watch—

CVE-2016-4657

Apple iOS Webkit Memory Corruption Vulnerability

CVSS

—

No CVSS

EPSS

66.8%

p99

KEV

YES

May 24, 2022

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

66.8%EPSS · 30 days66.8%

2026-06-302026-07-16

KEV catalog record

Product

Apple / iOS

Vulnerability

Apple iOS Webkit Memory Corruption Vulnerability

Added to KEV

May 24, 2022

Remediate by

Jun 14, 2022

Known ransomware use

Summary description

Apple iOS WebKit contains a memory corruption vulnerability that allows attackers to execute remote code or cause a denial-of-service (DoS) via a crafted web site. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2016-4657

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