CVE-2006-4392

Exp

The Mach kernel, as used in operating systems including (1) Mac OS X 10.4 through 10.4.7 and (2) OpenStep before 4.2, allows local users to gain privileges via a parent process that forces an exception in a setuid child and uses Mach exception ports to modify the child's thread context and task address space in a way that causes the child to call a parent-controlled function.

Published: 2006-10-03 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-4392 is rated High Exploit Risk (70.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.01%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2006-4392

EDB-ID Source Kind Published Link
2463 exploit_db edb 2006-09-30 Exploit-DB ↗
2464 exploit_db edb 2006-09-30 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2006-4392

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-12 1.06% 1.01% -0.04%
2 2025-05-21 1.02% 1.06% +0.04%
3 2025-03-30 — 1.02% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-4392

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2006-4392

OS Trackers for CVE-2006-4392

vendor priority summary link
alpine — CVE-2006-4392: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-4392

Affected software / configurations for CVE-2006-4392

Vendor Product Version Raw CPE
apple mac_os_x 10.4 cpe:2.3:o:apple:mac_os_x:10.4:*:*:*:*:*:*:*
apple mac_os_x 10.4.1 cpe:2.3:o:apple:mac_os_x:10.4.1:*:*:*:*:*:*:*
apple mac_os_x 10.4.2 cpe:2.3:o:apple:mac_os_x:10.4.2:*:*:*:*:*:*:*
apple mac_os_x 10.4.3 cpe:2.3:o:apple:mac_os_x:10.4.3:*:*:*:*:*:*:*
apple mac_os_x 10.4.4 cpe:2.3:o:apple:mac_os_x:10.4.4:*:*:*:*:*:*:*
apple mac_os_x 10.4.5 cpe:2.3:o:apple:mac_os_x:10.4.5:*:*:*:*:*:*:*
apple mac_os_x 10.4.6 cpe:2.3:o:apple:mac_os_x:10.4.6:*:*:*:*:*:*:*
apple mac_os_x 10.4.7 cpe:2.3:o:apple:mac_os_x:10.4.7:*:*:*:*:*:*:*
next openstep 4.1 cpe:2.3:o:next:openstep:4.1:*:*:*:*:*:*:*

References for CVE-2006-4392

cvelogic Threat Intelligence