CVE-2007-4648: norman norman_virus_control
Vulnerability summary
CVE-2007-4648 is a high (CVSS 7.2) vulnerability in norman norman_virus_control. EPSS estimates a 0.92% chance of exploitation in the next 30 days, higher than 59.7% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 31-08-2007PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
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 metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.92%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.92% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (48bits.com)
Maturity: unknown
Norman Virus Control - 'nvcoaft51.sys' ioctl BF672028
Maturity: weaponized
Weaknesses
CWE · root causeAffected systems
Norman1 product
1 vendor · 1 product