{"cve":"CVE-2007-4648","nvd":{"published":"2007-08-31T23:17:00.000","modified":"2026-06-16T22:44:30.163","status":"Modified","description":"The nvcoaft51 driver in Norman Virus Control (NVC) 5.82 uses weak permissions (unrestricted write access) for the NvcOa device, which allows local users to gain privileges by (1) triggering a buffer overflow in a kernel pool via a string argument to ioctl 0xBF67201C; or by (2) sending a crafted KEVENT structure through ioctl 0xBF672028 to overwrite arbitrary memory locations.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://securityreason.com/securityalert/3087","http://www.48bits.com/exploits/nvc.rar","http://www.securityfocus.com/archive/1/478224/100/0/threaded","http://www.securityfocus.com/bid/25499","http://www.securitytracker.com/id?1018636"],"products":["norman:norman_virus_control"],"source":"nvd","synced_at":"2026-10-19T19:48:28.501292361+00:00"},"epss":{"cve":"CVE-2007-4648","score":0.00924,"percentile":0.60434,"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."]}