What’s Vulnerable › Vulnerabilities

CVE-2010-2549

• Severity: high (CVSS 7.2 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2010-07-02 · updated 2026-06-16
• Weakness: CWE-399

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."

Affected products

• Microsoft Windows Server 2008: all versions
• Microsoft Windows Vista: all versions

References

• http://osvdb.org/66003
• http://seclists.org/fulldisclosure/2010/Jul/3
• http://secunia.com/advisories/40421
• http://www.exploit-db.com/exploits/14156
• http://www.securityfocus.com/bid/41280
• http://www.us-cert.gov/cas/techalerts/TA10-285A.html
• 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
• http://secunia.com/advisories/40421
• http://www.exploit-db.com/exploits/14156

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