Apple Mac OS X up to 10.9.4 information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as problematic has been found in Apple Mac OS X up to 10.9.4 (Operating System). This affects an unknown code block. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

The kernel in Apple OS X before 10.9.5 allows local users to obtain sensitive address information and bypass the ASLR protection mechanism by leveraging predictability of the location of the CPU Global Descriptor Table.

The weakness was presented 09/17/2014 by Ian Beer with Google Project Zero as HT6443 as confirmed advisory (Website). The advisory is shared at This vulnerability is uniquely identified as CVE-2014-4403 since 06/20/2014. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 77748 (Mac OS X 10.9.x < 10.9.5 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.

Upgrading to version 10.9.5 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 X-Force (96064), Vulnerability Center (SBV-46204) and Tenable (77748). See 67237, 67579, 67586 and 67585 for similar entries.






  • commercial


  • end of life

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.1
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
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Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 77748
Nessus Name: Mac OS X 10.9.x < 10.9.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-05 October-15
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.9.5


06/20/2014 🔍
09/17/2014 +89 days 🔍
09/17/2014 +0 days 🔍
09/17/2014 +0 days 🔍
09/17/2014 +0 days 🔍
09/18/2014 +1 days 🔍
09/19/2014 +1 days 🔍
09/23/2014 +4 days 🔍
02/20/2022 +2707 days 🔍



Advisory: HT6443
Researcher: Ian Beer
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-4403 (🔍)

X-Force: 96064
SecurityTracker: 1030868
Vulnerability Center: 46204 - Apple MacOS X 10.9 before 10.9.5 Local Security Bypass Vulnerability - CVE-2014-4403, Low
SecurityFocus: 69910 - Apple Mac OS X CVE-2014-4403 Local Security Bypass Vulnerability

scip Labs:
See also: 🔍


Created: 09/23/2014 01:06 PM
Updated: 02/20/2022 05:51 PM
Changes: 09/23/2014 01:06 PM (62), 06/06/2017 08:42 AM (16), 02/20/2022 05:44 PM (3), 02/20/2022 05:51 PM (1)
Complete: 🔍


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