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Vulnerability record · CVE-2010-1735 · published 6 May 2010

CVE-2010-1735: Microsoft windows 2000 improper input validation vulnerability

Microsoft · Windows 2000

The SfnLOGONNOTIFY function in win32k.sys in the kernel in Microsoft Windows 2000, XP, and Server 2003 allows local users to cause a denial of service (system crash) via a 0x4c value in the second argument (aka the Msg argument) of a PostMessage function call for the DDEMLEvent window.

4.9 CVSS 2.0 Medium EPSS 2.5% · top 15.6% CWE-20 · Improper input validation
4.9CVSS 2.0 base score
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
8References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

The SfnLOGONNOTIFY function in win32k.sys in the kernel in Microsoft Windows 2000, XP, and Server 2003 allows local users to cause a denial of service (system crash) via a 0x4c value in the second argument (aka the Msg argument) of a PostMessage function call for the DDEMLEvent window.

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

Affected products

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

References

LinkTags
http://secunia.com/advisories/39456 Vendor Advisory
http://vigilance.fr/vulnerability/Windows-denials-of-service-of-win32k-sys-9607 Exploit
http://www.securityfocus.com/archive/1/510884/100/0/threaded
http://www.securityfocus.com/bid/39630 Exploit
http://secunia.com/advisories/39456 Vendor Advisory
http://vigilance.fr/vulnerability/Windows-denials-of-service-of-win32k-sys-9607 Exploit
http://www.securityfocus.com/archive/1/510884/100/0/threaded
http://www.securityfocus.com/bid/39630 Exploit

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

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Source: NIST National Vulnerability Database (record CVE-2010-1735), CISA KEV, FIRST EPSS (scores of 2026-10-16). This page is refreshed as NVD updates the record.