CVE-2006-6696

Medium

Description

Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted data, which sends a HardError message to Client/Server Runtime Server Subsystem (CSRSS) process, which is not properly handled when invoking the UserHardError and GetHardErrorText functions in WINSRV.DLL.

SeverityMedium

CVSS6.9

Exploit probability—

Product

Microsoft Windows

PublishedDec 22, 2006

First seenDec 22, 2006

How to fix

Vendor advisories

docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-021

Affected products

Product	Affected versions	Fixed in
microsoft windows_2000	No range specified	—
microsoft windows_2003_server	datacenter_edition, enterprise_edition, sp1, standard, web	—
microsoft windows_vista	No range specified	—
microsoft windows_xp	No range specified	—

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