How severe is CVE-2007-4703?

CVE-2007-4703 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2007-4703 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4703?

CVE-2007-4703 primarily affects Apple Mac Os X. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4703?

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

When was CVE-2007-4703 published?

CVE-2007-4703 was published on 2007-11-15 and last updated on 2026-06-16.

CVE-2007-4703

CVE-2007-4703 is a critical-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apple Mac Os X
Published: 2007-11-15
Last modified: 2026-06-16

Description

The Application Firewall in Apple Mac OS X 10.5 does not prevent a root process from accepting incoming connections, even when "Block incoming connections" has been set for its associated executable, which might allow remote attackers or local root processes to bypass intended access restrictions.

Frequently asked questions

What is CVE-2007-4703?: The Application Firewall in Apple Mac OS X 10.5 does not prevent a root process from accepting incoming connections, even when "Block incoming connections" has been set for its associated executable, which might allow remote attackers or local root processes to bypass intended access restrictions.
How severe is CVE-2007-4703?: CVE-2007-4703 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2007-4703 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4703?: CVE-2007-4703 primarily affects Apple Mac Os X. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4703?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2007-4703 published?: CVE-2007-4703 was published on 2007-11-15 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:o:apple:mac_os_x:10.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5:*:*:*:*:*:*:*

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