CVE-2006-6723

Microsoft Windows 2000 SP4 and XP SP2 - Denial of Service via NetrWkstaUserEnum RPC Request

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-6723. PoCs published by h07.

AI-analyzed exploit summary This exploit targets a memory allocation vulnerability in the MS Windows Workstation Service via the NetrWkstaUserEnum() function, causing a remote denial-of-service (DoS) by exhausting memory. It leverages a NULL session over SMB to trigger the vulnerability.

Description

The Workstation service in Microsoft Windows 2000 SP4 and XP SP2 allows remote attackers to cause a denial of service (memory consumption) via a large maxlen value in an NetrWkstaUserEnum RPC request.

Exploits (1)

exploitdb WORKING POC VERIFIED
by h07 · pythondoswindows
https://www.exploit-db.com/exploits/3013

This exploit targets a memory allocation vulnerability in the MS Windows Workstation Service via the NetrWkstaUserEnum() function, causing a remote denial-of-service (DoS) by exhausting memory. It leverages a NULL session over SMB to trigger the vulnerability.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows Workstation Service (Windows XP SP2, Windows 2000 SP4)
No auth needed
Prerequisites: Network access to target · SMB/NetBIOS access (port 445)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/3013
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/23487
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1017441
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/5142

Scores

EPSS 0.3546
EPSS Percentile 98.2%

Details

CWE
CWE-399
Status published
Products (2)
microsoft/windows_2000
microsoft/windows_xp
Published Dec 26, 2006
Tracked Since Feb 18, 2026