{"cve":"CVE-2012-1893","nvd":{"published":"2012-07-10T21:55:06.197","modified":"2026-06-16T23:40:30.523","status":"Modified","description":"win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly validate callback parameters during creation of a hook procedure, which allows local users to gain privileges via a crafted application, aka \"Win32k Incorrect Type Handling Vulnerability.\"","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://www.us-cert.gov/cas/techalerts/TA12-192A.html","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-047","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15654","http://www.us-cert.gov/cas/techalerts/TA12-192A.html","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-047"],"products":["microsoft:windows_7","microsoft:windows_server_2003","microsoft:windows_server_2008","microsoft:windows_vista","microsoft:windows_xp"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2012-1893","score":0.01791,"percentile":0.78377,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}