Is CVE-2007-4648 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2007-4648, but active exploitation has not been confirmed.

Can CVE-2007-4648 be exploited remotely?

No. CVE-2007-4648 requires local access to exploit.

What is the CVSS score of CVE-2007-4648?

CVE-2007-4648 has a CVSS score of 7.2 (HIGH).

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HIGHPOC

CVE-2007-4648

CWE-119Published: August 31, 2007· Updated: Jun 16, 2026

7.2

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2007-4648 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2007-4648. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.