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CVE-2007-4648

27
FAUCET Score

CVE-2007-4648 describes a privilege escalation vulnerability in the nvcoaft51 driver of Norman Virus Control (NVC) 5.82. It allows local attackers to gain elevated privileges by exploiting weak permissions on the NvcOa device, either through a kernel pool buffer overflow or by overwriting arbitrary memory locations via crafted IOCTL calls. This vulnerability carries a CVSS score of 7.2, indicating high severity with local access, low attack complexity, and complete compromise of confidentiality, integrity, and availability. The FAUCET Risk Score is 86/100, further highlighting its critical nature. While not listed on the KEV catalog or Hot List, exploit code for this vulnerability is publicly available on ExploitDB (EDB-4345). Despite the existence of public exploits, there is no recorded community discussion or media coverage, suggesting limited public awareness or active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
5.82CPE matchmatch criteria
cpe:2.3:a:norman:norman_virus_control:5.82:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-4345 · Aug 30, 2007
This CVE's current EPSS score of 0.0092 is in the 76th percentile among its peer group of 3,241 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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