May 24, 2022 · Applied Cybernetics Group
CVE-2016-4657 — Apple iOS
Apple iOS Webkit Memory Corruption Vulnerability
- Added to KEV
2022-05-24- Federal due date
2022-06-14- Vendor
- Apple
- Product
- iOS
- EPSS
- 99.2th percentile (score 0.668, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2016-4657
CISA short 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.