Threats / Apple / CVE-2016-4655
CVE-2016-4655
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Apple iOS vulnerability
Apple iOS kernel information disclosure vulnerability allowing attackers to extract sensitive data from memory through a crafted application.
Verdict
Today item — known-exploited.
A memory information disclosure flaw in the iOS kernel enables local attackers to read sensitive data. The vulnerability is actively exploited in the wild, presenting significant risk to device users despite requiring local application execution.
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Public proof-of-concept exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
6 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-24).
Probability (EPSS)
EPSS 0.33353 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Apple, iOS. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-200 Information Exposure — weakness family: Authorization / access control.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious iOS application that triggers kernel memory access.
Business
User devices become vectors for unauthorized data extraction without user awareness.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I exploit the kernel flaw to read uninitialized or protected memory regions.
Business
Sensitive user data, credentials, and system information are compromised at scale.
3
Lateral reach — past segmentation narrative 3
Attacker
I exfiltrate extracted secrets for further attacks or sale.
Business
Apple's security reputation and user trust erode as privacy breaches become public.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05