{"id":"CVE-2011-1886","aliases":["EUVD-2011-1884","GHSA-mpc7-7p74-8wv7"],"status":"published","title":"win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 does not properly validate the...","description":"win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 does not properly validate the arguments to functions, which allows local users to read arbitrary data from kernel memory via a crafted application that triggers a NULL pointer dereference, aka \"Win32k Incorrect Parameter Validation Allows Information Disclosure Vulnerability.\"","severity":{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01878,"percentile":0.79575,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2011-07-13T23:00:00Z","modified":"2026-06-16T23:30:18Z","products":[{"vendor":"microsoft","product":"windows_xp"}],"references":[{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-054","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"http://www.securityfocus.com/bid/48607","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://support.avaya.com/css/P8/documents/100144947","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://osvdb.org/73791","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.us-cert.gov/cas/techalerts/TA11-193A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","US Government Resource"]},{"url":"http://secunia.com/advisories/45186","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12778","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.securitytracker.com/id?1025761","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1886"},{"url":"https://github.com/advisories/GHSA-mpc7-7p74-8wv7"}],"sources":{"cve":[{"id":"CVE-2011-1886","description":"win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 does not properly validate the arguments to functions, which allows local users to read arbitrary data from kernel memory via a crafted application that triggers a NULL pointer dereference, aka \"Win32k Incorrect Parameter Validation Allows Information Disclosure Vulnerability.\"","status":"published","published":"2011-07-13T23:00:00Z","modified":"2024-08-06T22:46:00.651Z","updated_at":"2026-11-02T14:35:38.321377Z"}],"euvd":[{"id":"EUVD-2011-1884","description":"win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 does not properly validate the arguments to functions, which allows local users to read arbitrary data from kernel memory via a crafted application that triggers a NULL pointer dereference, aka \"Win32k Incorrect Parameter Validation Allows Information Disclosure Vulnerability.\"","status":"published","published":"2011-07-13T23:00:00Z","modified":"2024-08-06T22:46:00Z","updated_at":"2026-11-03T01:55:54.666744Z"}],"ghsa":[{"id":"GHSA-mpc7-7p74-8wv7","title":"win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 does not properly validate the...","description":"win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 does not properly validate the arguments to functions, which allows local users to read arbitrary data from kernel memory via a crafted application that triggers a NULL pointer dereference, aka \"Win32k Incorrect Parameter Validation Allows Information Disclosure Vulnerability.\"","status":"published","published":"2022-05-14T02:35:51Z","modified":"2023-02-02T05:06:09Z","updated_at":"2026-11-02T14:52:15.07961Z"}],"nvd":[{"id":"CVE-2011-1886","description":"win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 does not properly validate the arguments to functions, which allows local users to read arbitrary data from kernel memory via a crafted application that triggers a NULL pointer dereference, aka \"Win32k Incorrect Parameter Validation Allows Information Disclosure Vulnerability.\"","status":"published","published":"2011-07-13T23:55:01.397Z","modified":"2026-06-16T23:30:18.57Z","cvss":[{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:02:09.182398Z"}]}}