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Vulnerability record · CVE-2007-4648 · published 31 August 2007

CVE-2007-4648: Norman virus control memory buffer overflow vulnerability

Norman · Norman Virus Control

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.

7.2 CVSS 2.0 High EPSS 0.92% · top 41.1% CWE-119 · Memory buffer overflow
7.2CVSS 2.0 base score
0.92%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References, 2 tagged exploit
16 Jun 2026Last modified by NVD

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.

AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://securityreason.com/securityalert/3087
http://www.48bits.com/exploits/nvc.rar Exploit
http://www.securityfocus.com/archive/1/478224/100/0/threaded
http://www.securityfocus.com/bid/25499
http://www.securitytracker.com/id?1018636
https://exchange.xforce.ibmcloud.com/vulnerabilities/36373
http://securityreason.com/securityalert/3087
http://www.48bits.com/exploits/nvc.rar Exploit
http://www.securityfocus.com/archive/1/478224/100/0/threaded
http://www.securityfocus.com/bid/25499
http://www.securitytracker.com/id?1018636
https://exchange.xforce.ibmcloud.com/vulnerabilities/36373

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2007-4648), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.