← Vulnerability feed

Vulnerability record · CVE-2009-1923 · published 12 August 2009

CVE-2009-1923: Microsoft windows 2000 memory buffer overflow vulnerability

Microsoft · Windows 2000

Heap-based buffer overflow in the Windows Internet Name Service (WINS) component for Microsoft Windows 2000 SP4 and Server 2003 SP2 allows remote attackers to execute arbitrary code via a crafted WINS replication packet that triggers an incorrect buffer-length calculation, aka "WINS Heap Overflow Vulnerability."

9.3 CVSS 2.0 High EPSS 25% · top 2.2% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in the Windows Internet Name Service (WINS) component for Microsoft Windows 2000 SP4 and Server 2003 SP2 allows remote attackers to execute arbitrary code via a crafted WINS replication packet that triggers an incorrect buffer-length calculation, aka "WINS Heap Overflow Vulnerability."

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.us-cert.gov/cas/techalerts/TA09-223A.html US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-039
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6410
http://www.us-cert.gov/cas/techalerts/TA09-223A.html US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-039
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6410

Track CVE-2009-1923 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2008-4250Microsoft Windows Server service RPC path canonicalization buffer overflowThe Server service in multiple Windows versions fails to properly handle path canonicalization, allowing a crafted RPC request to overflow a buffer a…KEVEPSS 99%analysed8.8CVE-2008-0015Microsoft DirectShow Video ActiveX Control Stack Buffer OverflowA stack-based buffer overflow in the CComVariant::ReadFromStream function in the Active Template Library (ATL) is reachable through the MPEG2TuneRequ…KEVEPSS 77%analysed8.8CVE-2009-1537Microsoft DirectShow QuickTime Parser NULL Byte Overwrite RCEThe QuickTime Movie Parser Filter in quartz.dll (DirectShow, DirectX 7.0 through 9.0c) contains an unspecified NULL byte overwrite flaw. A crafted Qu…KEVEPSS 51%analysed7.8CVE-2015-1701Microsoft Windows Win32k.sys Local Privilege EscalationWin32k.sys in the Windows kernel-mode drivers fails to properly validate input, allowing a local user to elevate privileges by running a crafted appl…KEVEPSS 56%analysed7.8CVE-2013-5065Microsoft Windows NDProxy.sys kernel local privilege escalationNDProxy.sys in the Windows kernel on Windows XP SP2/SP3 and Server 2003 SP2 fails to properly validate input, letting a local user escalate privilege…KEVEPSS 35%analysed7.8CVE-2010-0232Windows kernel exception handler privilege escalation via NTVDMThe Windows kernel fails to properly validate certain BIOS calls when 16-bit application support is enabled on 32-bit x86 systems. A local user can c…KEVEPSS 29%analysed7.8CVE-2009-1123Microsoft Windows kernel improper validation allows local privilege escalationThe Windows kernel fails to properly validate changes to unspecified kernel objects, letting a local user elevate privileges through a crafted applic…KEVEPSS 4.9%analysed7.8CVE-2004-0210Microsoft Windows POSIX component buffer overflow allows local code executionThe POSIX subsystem in Windows NT and Windows 2000 contains a classic buffer overflow (CWE-120) that can be triggered by local users through crafted …KEVEPSS 7.2%analysed

Source: NIST National Vulnerability Database (record CVE-2009-1923), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.