How severe is CVE-2007-4648?

CVE-2007-4648 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2007-4648 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4648?

CVE-2007-4648 affects Norman Norman Virus Control. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-4648?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2007-4648 published?

CVE-2007-4648 was published on 2007-08-31 and last updated on 2026-06-16.

CVE-2007-4648

CVE-2007-4648 is a high-severity vulnerability in Norman Norman Virus Control with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Norman Norman Virus Control
Published: 2007-08-31
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2007-4648?: 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.
How severe is CVE-2007-4648?: CVE-2007-4648 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2007-4648 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4648?: CVE-2007-4648 affects Norman Norman Virus Control. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-4648?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2007-4648 published?: CVE-2007-4648 was published on 2007-08-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:norman:norman_virus_control:5.82:*:*:*:*:*:*:*

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