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CVE-2007-4303

19
FAUCET Score

CVE-2007-4303 describes multiple race conditions in CerbNG for FreeBSD 4.8, specifically within its rules and argument copying during VM protection. This flaw allows local attackers to bypass system call interposition, potentially leading to privilege escalation or evasion of auditing mechanisms. With a CVSS score of 6.2 (AV:L/AC:H/Au:N/C:C/I:C/A:C), the vulnerability requires high attack complexity but grants full confidentiality, integrity, and availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
0.1CPE matchmatch criteria
cpe:2.3:a:cerb:cerbng:0.1:*:freebsd:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:cerb:cerbng:0.2:*:freebsd:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:cerb:cerbng:0.3:*:freebsd:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:cerb:cerbng:0.4:*:freebsd:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.2MEDIUM

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
20.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 12th percentile among its peer group of 1,595 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/26474
securityfocus.com / bid/25259
watson.org / ~robert/2007woot