{"id":"CVE-2013-6999","aliases":["EUVD-2013-6800","GHSA-vxrg-v6vf-8c93"],"status":"disputed","title":"** DISPUTED ** The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in...","description":"The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2008 SP2 does not properly validate the tagPROCESSINFO pW32Job field, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted NtUserValidateHandleSecure call for an owned object.  NOTE: the vendor reportedly disputes the significance of this report, stating that \"it appears to be a local DOS ... we don't consider it a security vulnerability.","severity":{"version":"2.0","score":4,"vector":"AV:L/AC:H/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01957,"percentile":0.80435,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2013-12-07T01:00:00Z","modified":"2026-06-17T00:01:15Z","products":[{"vendor":"microsoft","product":"windows_server_2008"}],"references":[{"url":"http://www.securityfocus.com/bid/64057","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://pastebin.com/raw.php?i=we0ZSQC0","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://secunia.com/advisories/55633","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-6999"},{"url":"https://github.com/advisories/GHSA-vxrg-v6vf-8c93"}],"sources":{"cve":[{"id":"CVE-2013-6999","description":"The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2008 SP2 does not properly validate the tagPROCESSINFO pW32Job field, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted NtUserValidateHandleSecure call for an owned object.  NOTE: the vendor reportedly disputes the significance of this report, stating that \"it appears to be a local DOS ... we don't consider it a security vulnerability.","status":"disputed","published":"2013-12-07T01:00:00Z","modified":"2024-08-06T17:53:45.925Z","updated_at":"2026-11-02T14:34:57.499208Z"}],"euvd":[{"id":"EUVD-2013-6800","description":"The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2008 SP2 does not properly validate the tagPROCESSINFO pW32Job field, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted NtUserValidateHandleSecure call for an owned object.  NOTE: the vendor reportedly disputes the significance of this report, stating that \"it appears to be a local DOS ... we don't consider it a security vulnerability.","status":"published","published":"2013-12-07T01:00:00Z","modified":"2024-08-06T17:53:45Z","updated_at":"2026-11-03T01:56:24.812586Z"}],"ghsa":[{"id":"GHSA-vxrg-v6vf-8c93","title":"** DISPUTED ** The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in...","description":"** DISPUTED ** The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2008 SP2 does not properly validate the tagPROCESSINFO pW32Job field, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted NtUserValidateHandleSecure call for an owned object.  NOTE: the vendor reportedly disputes the significance of this report, stating that \"it appears to be a local DOS ... we don't consider it a security vulnerability.\"","status":"published","published":"2022-05-17T04:56:00Z","modified":"2023-01-28T05:02:50Z","updated_at":"2026-11-02T14:43:51.142982Z"}],"nvd":[{"id":"CVE-2013-6999","description":"The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2008 SP2 does not properly validate the tagPROCESSINFO pW32Job field, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted NtUserValidateHandleSecure call for an owned object.  NOTE: the vendor reportedly disputes the significance of this report, stating that \"it appears to be a local DOS ... we don't consider it a security vulnerability.","status":"disputed","published":"2013-12-07T01:55:02.92Z","modified":"2026-06-17T00:01:15.297Z","cvss":[{"version":"2.0","score":4,"vector":"AV:L/AC:H/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:44.596064Z"}]}}