Apple iOS up to 10.0.3 Kernel input validation

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability classified as critical has been found in Apple iOS up to 10.0.3 (Smartphone Operating System). This affects an unknown function of the component Kernel. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 10/24/2016 by Ian Beer with Google Project Zero as HT207271 as confirmed advisory (Website). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2016-4669 since 05/11/2016. The exploitability is told to be easy. Attacking locally is a requirement. The successful exploitation requires a authentication. Technical details are unknown but a public exploit is available. The advisory points out:

Multiple input validation issues existed in MIG generated code. These issues were addressed through improved validation.

It is declared as proof-of-concept. The exploit is shared for download at We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 94337 (Apple TV < 10.0.1 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context remote. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370175 (Apple Mac OS X Security Update Sierra 10.12.1, El Capitan 2016-002 and Yosemite 2016-006 Not Installed (APPLE-SA-2016-10-24-2)).

Upgrading to version 10.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (94337) and Exploit-DB (40654). Entries connected to this vulnerability are available at 93042, 93046, 93047 and 93052.






  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.8
VulDB Temp Score: 7.0
VulDB Vector: 🔍
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NVD Base Score: 7.8
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Class: Input validation
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 94337
Nessus Name: Apple TV < 10.0.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
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OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-04 February-2017
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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Upgrade: iOS 10.1


05/11/2016 🔍
10/24/2016 +166 days 🔍
10/24/2016 +0 days 🔍
10/24/2016 +0 days 🔍
10/25/2016 +1 days 🔍
10/27/2016 +2 days 🔍
02/20/2017 +116 days 🔍
09/28/2022 +2046 days 🔍



Advisory: HT207271
Researcher: Ian Beer
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4669 (🔍)
SecurityTracker: 1037086
SecurityFocus: 93849 - Apple macOS/watchOS/iOS/tvOS Multiple Security Vulnerabilities

scip Labs:
See also: 🔍


Created: 10/25/2016 09:02 AM
Updated: 09/28/2022 10:01 AM
Changes: 10/25/2016 09:02 AM (74), 05/17/2019 03:49 PM (15), 09/28/2022 10:01 AM (5)
Complete: 🔍


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