{"id":"CVE-2007-4648","aliases":["EUVD-2007-4630","GHSA-r96j-qc97-7fj4"],"status":"published","title":"The nvcoaft51 driver in Norman Virus Control (NVC) 5.82 uses weak permissions (unrestricted write...","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.","severity":{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00924,"percentile":0.60664,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2007-08-31T23:00:00Z","modified":"2026-06-16T22:44:30Z","exploits":[{"source":"exploitdb","id":"EDB-4345","title":"Norman Virus Control - 'nvcoaft51.sys' ioctl BF672028","type":"local","platform":"windows","date":"2007-08-30","verified":true,"url":"https://www.exploit-db.com/exploits/4345"}],"products":[{"vendor":"norman","product":"norman_virus_control"}],"references":[{"url":"http://www.securityfocus.com/archive/1/478224/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securitytracker.com/id?1018636","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.securityfocus.com/bid/25499","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://securityreason.com/securityalert/3087","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/36373","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.48bits.com/exploits/nvc.rar","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-4648"},{"url":"https://github.com/advisories/GHSA-r96j-qc97-7fj4"}],"sources":{"cve":[{"id":"CVE-2007-4648","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.","status":"published","published":"2007-08-31T23:00:00Z","modified":"2024-08-07T15:01:09.979Z","updated_at":"2026-11-02T13:33:30.262137Z"}],"euvd":[{"id":"EUVD-2007-4630","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.","status":"published","published":"2007-08-31T23:00:00Z","modified":"2024-08-07T15:01:09Z","updated_at":"2026-11-03T01:16:20.592518Z"}],"ghsa":[{"id":"GHSA-r96j-qc97-7fj4","title":"The nvcoaft51 driver in Norman Virus Control (NVC) 5.82 uses weak permissions (unrestricted write...","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.","status":"published","published":"2022-05-01T18:25:44Z","modified":"2023-01-31T05:04:22Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:48:39.538271Z"}],"nvd":[{"id":"CVE-2007-4648","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.","status":"published","published":"2007-08-31T23:17:00Z","modified":"2026-06-16T22:44:30.163Z","cvss":[{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:01:19.102336Z"}]}}