How severe is CVE-2007-4691?

CVE-2007-4691 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2007-4691 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4691?

CVE-2007-4691 primarily affects Apple Mac Os X. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4691?

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-2007-4691 published?

CVE-2007-4691 was published on 2007-11-15 and last updated on 2026-06-16.

CVE-2007-4691

CVE-2007-4691 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. The underlying weakness is classified as CWE-264.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Apple Mac Os X
Published: 2007-11-15
Last modified: 2026-06-16

Description

The NSURL component in Apple Mac OS X 10.4 through 10.4.10 performs case-sensitive comparisons that allow attackers to bypass intended restrictions for local file system URLs.

Frequently asked questions

What is CVE-2007-4691?: The NSURL component in Apple Mac OS X 10.4 through 10.4.10 performs case-sensitive comparisons that allow attackers to bypass intended restrictions for local file system URLs.
How severe is CVE-2007-4691?: CVE-2007-4691 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2007-4691 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4691?: CVE-2007-4691 primarily affects Apple Mac Os X. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4691?: 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-2007-4691 published?: CVE-2007-4691 was published on 2007-11-15 and last updated on 2026-06-16.

References

Affected products (22)

cpe:2.3:o:apple:mac_os_x:10.3.9:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.4:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.6:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.7:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.8:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.9:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.10:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.3.9:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.4:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.6:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.7:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.8:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.9:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.10:*:*:*:*:*:*:*

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