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Vulnerability record · CVE-2010-2549 · published 2 July 2010

CVE-2010-2549: Microsoft windows server 2008 vulnerability

Microsoft · Windows Server 2008

Use-after-free vulnerability in the kernel-mode drivers in Microsoft Windows Vista SP1 and SP2 and Server 2008 Gold and SP2 allows local users to gain privileges or cause a denial of service (system crash) by using a large number of calls to the NtUserCheckAccessForIntegrityLevel function to trigger a failure in the LockProcessByClientId function, leading to deletion of an in-use process object, aka "Win32k Reference Count Vulnerability."

7.2 CVSS 2.0 High EPSS 5.1% · top 7.9% CWE-399 · CWE-399
7.2CVSS 2.0 base score
5.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
16References, 6 tagged exploit
16 Jun 2026Last modified by NVD

Description

Use-after-free vulnerability in the kernel-mode drivers in Microsoft Windows Vista SP1 and SP2 and Server 2008 Gold and SP2 allows local users to gain privileges or cause a denial of service (system crash) by using a large number of calls to the NtUserCheckAccessForIntegrityLevel function to trigger a failure in the LockProcessByClientId function, leading to deletion of an in-use process object, aka "Win32k Reference Count Vulnerability."

AV:L/AC:L/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://osvdb.org/66003
http://seclists.org/fulldisclosure/2010/Jul/3 Exploit
http://secunia.com/advisories/40421 Vendor Advisory
http://www.exploit-db.com/exploits/14156 Exploit
http://www.securityfocus.com/bid/41280 Exploit
http://www.us-cert.gov/cas/techalerts/TA10-285A.html US Government Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/60120
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12215
http://osvdb.org/66003
http://seclists.org/fulldisclosure/2010/Jul/3 Exploit
http://secunia.com/advisories/40421 Vendor Advisory
http://www.exploit-db.com/exploits/14156 Exploit
http://www.securityfocus.com/bid/41280 Exploit
http://www.us-cert.gov/cas/techalerts/TA10-285A.html US Government Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/60120
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12215

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2010-2549), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.