CVE-2016-4656

HIGH7.8

CISA KEV

Published 2016-08-25 · Updated 2026-06-17 · Source product-security@apple.com

Summary

CVE-2016-4656 is a high-severity (CVSS 7.8) vulnerability in Apple iOS. CISA added it to the Known Exploited Vulnerabilities catalog on May 24, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 14, 2022. CISA does not currently list it as used in ransomware campaigns. Apple has 96 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 96 known-exploited Apple vulnerabilities →

Description

The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-787CWE-787

CISA Known-Exploited Vulnerability

Product: Apple — iOS

Name: Apple iOS Memory Corruption Vulnerability

Date added: 2022-05-24 · Due: 2022-06-14

Required action: Apply updates per vendor instructions.

References

View on NVD

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