CVE-2016-4655

Summary

CVE	CVE-2016-4655
State	PUBLISHED
Assigner	apple
Source Priority	CVE Program / NVD first with legacy fallback
Published	2016-08-25 21:59:00 UTC
Updated	2026-04-21 16:23:08 UTC
Description	The kernel in Apple iOS before 9.3.5 allows attackers to obtain sensitive information from memory via a crafted app.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

EPSS: 0.817140000 probability, percentile 0.991940000 (date 2026-04-24)

CISA KEV: Listed on 2022-05-24; due 2022-06-14; ransomware use Unknown

Problem Types: NVD-CWE-noinfo | n/a | CWE-noinfo Not enough information

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	5.5	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`
3.1	ADP	DECLARED	5.5	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`
3.1	134c704f-9b21-4f2e-91b3-4a467353bcc0	Secondary	5.5	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`
2.0	[email protected]	Primary	7.1		`AV:N/AC:M/Au:N/C:C/I:N/A:N`

CVSS v3.1 Breakdown

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

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

CVSS v2.0 Breakdown

Access Vector

Network

Access Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

None

Availability

None

AV:N/AC:M/Au:N/C:C/I:N/A:N

CISA Known Exploited Vulnerability

Vendor	Apple
Product	iOS
Name	Apple iOS Information Disclosure Vulnerability
Required Action	Apply updates per vendor instructions.
Notes	https://nvd.nist.gov/vuln/detail/CVE-2016-4655

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Apple	Iphone Os	All	All	All	All
Operating System	Apple	Iphone Os	10.0	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Na	N/a	affected n/a	Not specified

References

Reference	Source	Link	Tags
Apple iOS CVE-2016-4655 Information Disclosure Vulnerability	af854a3a-2127-422b-91ae-364da2661108	www.securityfocus.com	Broken Link, Third Party Advisory, VDB Entry
About the security content of iOS 9.3.5 - Apple Support	af854a3a-2127-422b-91ae-364da2661108	support.apple.com	Vendor Advisory
WebKit - not_number defineProperties UAF (Metasploit) - iOS remote Exploit	af854a3a-2127-422b-91ae-364da2661108	www.exploit-db.com	Exploit, Third Party Advisory, VDB Entry
APPLE-SA-2016-08-25-1 iOS 9.3.5	af854a3a-2127-422b-91ae-364da2661108	lists.apple.com	Mailing List, Vendor Advisory, Broken Link
Apple iOS CVE-2016-4655 Local Information Disclosure Vulnerability	af854a3a-2127-422b-91ae-364da2661108	www.securityfocus.com	Broken Link, Third Party Advisory, VDB Entry
Apple iOS WebKit Flaws Let Remote Users Execute Arbitrary Code and Applications Obtain Kernel Memory Contents and Gain Elevated Privileges - SecurityTracker	af854a3a-2127-422b-91ae-364da2661108	www.securitytracker.com	Broken Link, Third Party Advisory, VDB Entry
Apple - Lists.apple.com	af854a3a-2127-422b-91ae-364da2661108	lists.apple.com	Mailing List, Vendor Advisory, Broken Link
Sophisticated, persistent mobile attack against high-value targets on iOS \| Lookout Blog	af854a3a-2127-422b-91ae-364da2661108	blog.lookout.com	Broken Link
About the security content of iOS 10.0.1 - Apple Support	af854a3a-2127-422b-91ae-364da2661108	support.apple.com	Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog	134c704f-9b21-4f2e-91b3-4a467353bcc0	www.cisa.gov	US Government Resource
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis
CISA Known Exploited Vulnerabilities catalog	CISA	www.cisa.gov	kev

No vendor comments have been submitted for this CVE.

Additional Advisory Data

Source	Time	Event
ADP	2022-05-24T00:00:00.000Z	CVE-2016-4655 added to CISA KEV

There are currently no legacy QID mappings associated with this CVE.