HOME VULNERABILITIESCVE-2006-4392

HIGHPOC

CVE-2006-4392

NVD-CWE-OtherPublished: October 3, 2006· Updated: Jun 16, 2026

7.2

CVSS v3.1

Official Description

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.

Technical Analysis

CVE-2006-4392 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2006-4392. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.

User Interaction

Scope

Impact

ConfidentialityC

IntegrityC

AvailabilityC

AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors & Products

Apple1 product(s)

mac os x

next1 product(s)

openstep

Source: NVD CPE · 9 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://lists.apple.com/archives/security-announce/2006/Sep/msg00002.html

PATCHhttp://secunia.com/advisories/22187

PATCHhttp://www.securityfocus.com/bid/20271

PATCHhttp://lists.apple.com/archives/security-announce/2006/Sep/msg00002.html

PATCHhttp://secunia.com/advisories/22187

PATCHhttp://www.securityfocus.com/bid/20271

ADVISORYhttp://www.matasano.com/log/530/matasano-advisory-macos-x-mach-exception-server-privilege-escalation/

ADVISORYhttp://www.matasano.com/log/530/matasano-advisory-macos-x-mach-exception-server-privilege-escalation/

All References (24)

→

http://lists.apple.com/archives/security-announce/2006/Sep/msg00002.htmlPatch

→

http://secunia.com/advisories/22187Patch · Vendor Advisory

→

http://securityreason.com/securityalert/1663

→

http://securitytracker.com/id?1016954

→

http://www.kb.cert.org/vuls/id/838404US Government Resource

→

http://www.matasano.com/log/530/matasano-advisory-macos-x-mach-exception-server-privilege-escalation/Vendor Advisory

→

http://www.osvdb.org/29269

→

http://www.securityfocus.com/archive/1/447396/100/0/threaded

→

http://www.securityfocus.com/bid/20271Patch

→

http://www.us-cert.gov/cas/techalerts/TA06-275A.htmlUS Government Resource

→

http://www.vupen.com/english/advisories/2006/3852

→

https://exchange.xforce.ibmcloud.com/vulnerabilities/29281

→

http://lists.apple.com/archives/security-announce/2006/Sep/msg00002.htmlPatch

→

http://secunia.com/advisories/22187Patch · Vendor Advisory

→

http://securityreason.com/securityalert/1663

Quick Facts

CVE IDCVE-2006-4392

CVSS Score7.2 / 10

SeverityHIGH

WeaknessNVD-CWE-Other

CISA KEVNo

ExploitPOC

Affected2 vendor(s)

PublishedOct 3, 2006

Related CVEs (NVD-CWE-Other)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2006-4392 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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