7.2

CVE-2007-4648: norman norman_virus_control

CVSS: 7.2v2.0HighModified
Published 31-08-2007Last modified 07-08-2024

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.

Overall risk
39/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v2.0 (NVD)
EPSS score
0.92%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, exploit-database

Timeline

  1. 31-08-2007
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last 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 version

EPSS 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

18-09-202618-10-2026
EPSS score
0.92%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (48bits.com)

    Maturity: unknown

  • exploit-databaselocalwindowsVerified

    Norman Virus Control - 'nvcoaft51.sys' ioctl BF672028

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Norman1 product

1 vendor · 1 product

References

6 links