Which products and versions are affected by CVE-2016-4655?

Affected: Iphone OS (Apple) versions 10.0. The full list is in the CVE brief.

Is CVE-2016-4655 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 15, 2016 and is known to be used in ransomware campaigns.

Is CVE-2016-4655 in the CISA KEV catalog?

Yes. It was added on May 24, 2022 with a federal remediation due date of Jun 14, 2022.

Is there a public exploit for CVE-2016-4655?

Public exploit code is available.

Is there a fix for CVE-2016-4655?

Fixed versions are available, including Iphone OS 9.3.5.

How urgently should CVE-2016-4655 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Request A Demo

Vulnerability Intelligence

CVE-2016-4655

MediumExploitedPublic exploit

The kernel in Apple iOS before 9.3.5 allows attackers to obtain sensitive information from memory via a crafted app.

Published Aug 25, 2016 · Updated Apr 21, 2026

Key Facts

Patch immediately

CVE-2016-4655 is a medium-severity vulnerability (CVSS 5.5 v3.1) affecting Iphone OS (Apple).
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 15, 2016 and is known to be used in ransomware campaigns. Public exploit code is available.
EPSS estimates a 33% probability of exploitation in the next 30 days.
Fixed versions are available, including Iphone OS 9.3.5.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

5.5

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

EPSS (30-day exploit likelihood)

33%

Higher than 98.3% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings, used by ransomware

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2016-4655 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

The kernel in Apple iOS before 9.3.5 allows attackers to obtain sensitive information from memory via a crafted app.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	May 24, 2022	Jun 14, 2022	Not reported
Industry KEV feed	Aug 15, 2016	Jun 14, 2022	Known
CIRCL KEV	May 24, 2022	Jun 14, 2022	Not reported
ENISA EUVD	May 24, 2022	n/a	Not reported

Required action: Apply updates per vendor instructions.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Iphone OSApple	10.0	9.3.5

Patched Releases

Iphone OS

9.3.5

Timeline

Added to Industry KEV feed
Aug 15, 2016
Publicly disclosed
Aug 25, 2016
Added to CISA KEV
May 24, 2022
Added to CIRCL KEV
May 24, 2022
Added to ENISA EUVD
May 24, 2022
Last updated
Apr 21, 2026

References

advisoryAPPLE-SA-2016-08-25-1
advisoryAPPLE-SA-2016-09-14-1
advisoryhttps://support.apple.com/HT207107
advisoryhttps://support.apple.com/HT207145
advisory92651

11 more references in the full CVE brief

FAQ

Common Questions.

The kernel in Apple iOS before 9.3.5 allows attackers to obtain sensitive information from memory via a crafted app.
Affected: Iphone OS (Apple) versions 10.0. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 15, 2016 and is known to be used in ransomware campaigns.
Yes. It was added on May 24, 2022 with a federal remediation due date of Jun 14, 2022.
Public exploit code is available.
Fixed versions are available, including Iphone OS 9.3.5.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2016-4655 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.