{"id":"CVE-2015-1721","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-1721","generatedAt":"2026-10-27T19:56:07.349Z","title":"The kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allow local users to gain…","description":"The kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allow local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via a crafted application, aka \"Win32k Null Pointer Dereference Vulnerability.\"","published":"2015-06-10T01:59:03.000Z","lastModified":"2026-06-17T00:22:53.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"2.0","score":7.2,"severity":"HIGH","vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C"},"cwe":["CWE-476"],"affected":["microsoft/windows 7","microsoft/windows 8","microsoft/windows 8.1","microsoft/windows rt","microsoft/windows rt 8.1","microsoft/windows server 2003","microsoft/windows server 2008","microsoft/windows server 2012","microsoft/windows vista"],"epss":{"score":0.03296,"percentile":0.88419,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2015-09-22","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":38274,"kind":"exploit","title":"Microsoft Windows Kernel - Null Pointer Dereference with Window Station and Clipboard (MS15-061)","url":"https://www.exploit-db.com/exploits/38274","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows_x86/dos/38274.txt","file":"exploits/windows_x86/dos/38274.txt","published":"2015-09-22","added":"2015-09-22","updated":"2015-09-22","author":"Nils Sommer","type":"dos","platform":"windows_x86","port":null,"verified":true,"codes":["CVE-2015-1721","OSVDB-123067","MS15-061"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://code.google.com/p/google-security-research/issues/detail?id=294"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 3.3%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://www.securitytracker.com/id/1032525","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-061","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"https://www.exploit-db.com/exploits/38274/","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://www.securitytracker.com/id/1032525","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-061","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/38274/","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-1721","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}