Vulnerability

CVE-2016-4655

Medium· 5.5KEVEXPLOITCVSS5.5EPSS82%

.rules3/5

Apple iOS Information Disclosure Vulnerability

The Apple iOS kernel allows attackers to obtain sensitive information from memory via a crafted application.

Threat signal

83/100

High

Severity

medium

CVSS

5.5

EPSS

82%

Active

KEV

CISA KEV — actively exploited

1460d overdue

AffectedApple — iOS

Added to KEV

2022-05-24

Federal patch due (BOD 22-01)

2022-06-14

Required action (CISA verbatim)

Apply updates per vendor instructions.

Vendor advisory + references

https://nvd.nist.gov/vuln/detail/CVE-2016-4655

CISA description: “The Apple iOS kernel allows attackers to obtain sensitive information from memory via a crafted application.”

CVSS

v3.1Open in FIRST calculator →

5.5/ 10MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack VectorLocalRequires local access — shell, console, or local app.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionRequiredRequires user action (click, file open, etc).
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactHighTotal disclosure of sensitive data.
Integrity ImpactNoneNo integrity impact.
Availability ImpactNoneNo availability impact.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

82.1%

probability of exploitation in next 30 days

p99

higher than 99% of all CVEs

3-day trend↑ 0pp

Statistically about to be weaponized — top-tier triage urgency.

Vendor VEX

No VEX statements published for CVE-2016-4655. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCAttend

Active exploitation with limited impact — coordinate patching

exploitation: active
automatable: no
impact: partial
mission: support

Lifecycle

2022-05-24Added to CISA KEVransomware: Unknown
2022-05-24Public exploit observedexploitdb, metasploit
2022-05-24Published
2022-06-14Federal patch due (BOD 22-01)
2026-06-12Last modified1 source

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.