How severe is CVE-2007-4304?

CVE-2007-4304 has a CVSS 2.0 base score of 6.2, rated medium severity.

Is CVE-2007-4304 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4304?

CVE-2007-4304 primarily affects Cerb Cerbng. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4304?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-4304 published?

CVE-2007-4304 was published on 2007-08-13 and last updated on 2026-06-16.

CVE-2007-4304

CVE-2007-4304 is a medium-severity vulnerability in Cerb Cerbng with a CVSS 2.0 base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 6.2)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cerb Cerbng
Published: 2007-08-13
Last modified: 2026-06-16

Description

CerbNG for FreeBSD 4.8 does not properly implement VM protection when attempting to prevent system call wrapper races, which allows local users to have an unknown impact related to an "incorrect write protection of pages".

Frequently asked questions

What is CVE-2007-4304?: CerbNG for FreeBSD 4.8 does not properly implement VM protection when attempting to prevent system call wrapper races, which allows local users to have an unknown impact related to an "incorrect write protection of pages".
How severe is CVE-2007-4304?: CVE-2007-4304 has a CVSS 2.0 base score of 6.2, rated medium severity.
Is CVE-2007-4304 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4304?: CVE-2007-4304 primarily affects Cerb Cerbng. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4304?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-4304 published?: CVE-2007-4304 was published on 2007-08-13 and last updated on 2026-06-16.

References

http://www.watson.org/~robert/2007woot/

Affected products (4)

cpe:2.3:a:cerb:cerbng:0.1:*:freebsd:*:*:*:*:*
cpe:2.3:a:cerb:cerbng:0.2:*:freebsd:*:*:*:*:*
cpe:2.3:a:cerb:cerbng:0.3:*:freebsd:*:*:*:*:*
cpe:2.3:a:cerb:cerbng:0.4:*:freebsd:*:*:*:*:*

More vulnerabilities in Cerb Cerbng

CVE-2007-4303 — Medium (CVSS 6.2): Multiple race conditions in (1) certain rules and (2) argument copying during VM protection, in CerbNG for FreeBSD 4.8…

All CVEs affecting Cerb Cerbng →