Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
CISA KEV·Added 2022-05-24 — agencies required to remediate by 2022-06-14

CVE-2016-4656

HIGH

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.

Published
Aug 25, 2016
Updated
Apr 21, 2026
Affected
0 pkgs
Patched
None yet
Exploits
5 known

EPSS Exploitation Probability

via FIRST.org ↗
65.3%probability of exploitation in next 30 days
High Risk99th percentile0.00%
62.9%67.2%71.5%75.7%72.4%65.3%Dec 25Apr 26Jun 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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.

Affected Products

1 product · 1 configurations
OS
iphone osapple
< 9.3.5
range
Exploits & PoCs
5

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-44836remoteios✓ Verified

WebKit - not_number defineProperties UAF (Metasploit)

by Metasploit · Jun 5, 2018

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

Is CVE-2016-4656 in your stack?

O3 detects CVE-2016-4656 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.