Apple Mac OS X up to 10.11.3 dyld 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as critical, has been found in Apple Mac OS X up to 10.11.3 (Operating System). Affected by this issue is an unknown part of the component dyld. The manipulation with an unknown input leads to a 7pk security vulnerability. Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality, integrity, and availability. CVE summarizes:

dyld in Apple OS X before 10.11.4 allows attackers to bypass a code-signing protection mechanism via a modified app.

The weakness was shared 03/21/2016 as HT206167 as confirmed advisory (Website). The advisory is available at This vulnerability is handled as CVE-2016-1738 since 01/13/2016. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1211 by the MITRE ATT&CK project. The advisory points out:

A code signing verification issue existed in dyld. This issue was addressed with improved validation.

The vulnerability scanner Nessus provides a plugin with the ID 90096 (Mac OS X 10.11.x < 10.11.4 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124842 (Apple Mac OS X v10.11.4 and Security Update 2016-002 Not Installed (APPLE-SA-2016-03-21-5)).

Upgrading to version 10.11.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (90096).








CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
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NVD Base Score: 7.8
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Class: 7pk security
CWE: CWE-254

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 90096
Nessus Name: Mac OS X 10.11.x < 10.11.4 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 March-2016
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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Upgrade: Mac OS X 10.11.4


01/13/2016 🔍
03/21/2016 +68 days 🔍
03/21/2016 +0 days 🔍
03/21/2016 +0 days 🔍
03/22/2016 +1 days 🔍
03/22/2016 +0 days 🔍
03/23/2016 +1 days 🔍
03/23/2016 +0 days 🔍
07/11/2022 +2301 days 🔍



Advisory: HT206167
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1738 (🔍)
SecurityTracker: 1035363
Vulnerability Center: 57577 - Apple OS X 10.11 through 10.11.3 Remote Code Execution in Dyld, Critical
SecurityFocus: 71820

scip Labs:


Created: 03/23/2016 12:10 PM
Updated: 07/11/2022 07:38 AM
Changes: 03/23/2016 12:10 PM (74), 02/02/2019 11:06 AM (11), 07/11/2022 07:38 AM (4)
Complete: 🔍
Cache ID: 3:D4A:40


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