How severe is CVE-2009-2194?

CVE-2009-2194 has a CVSS 2.0 base score of 4.9, rated medium severity.

Is CVE-2009-2194 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2194?

CVE-2009-2194 primarily affects Apple Mac Os X. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2194?

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

When was CVE-2009-2194 published?

CVE-2009-2194 was published on 2009-08-06 and last updated on 2026-06-16.

CVE-2009-2194

CVE-2009-2194 is a medium-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 4.9. 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 4.9)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apple Mac Os X
Published: 2009-08-06
Last modified: 2026-06-16

Description

Apple Mac OS X 10.5 before 10.5.8 does not properly share file descriptors over local sockets, which allows local users to cause a denial of service (system crash) by placing file descriptors in messages sent to a socket that has no receiver, related to a "synchronization issue."

Frequently asked questions

What is CVE-2009-2194?: Apple Mac OS X 10.5 before 10.5.8 does not properly share file descriptors over local sockets, which allows local users to cause a denial of service (system crash) by placing file descriptors in messages sent to a socket that has no receiver, related to a "synchronization issue."
How severe is CVE-2009-2194?: CVE-2009-2194 has a CVSS 2.0 base score of 4.9, rated medium severity.
Is CVE-2009-2194 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2194?: CVE-2009-2194 primarily affects Apple Mac Os X. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2194?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2194 published?: CVE-2009-2194 was published on 2009-08-06 and last updated on 2026-06-16.

References

Affected products (20)

cpe:2.3:a:apple:mac_os_x:10.5.6:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5.2:2008-002:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5.4:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5.6:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5.7:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5.4:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5.6:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.5.7:*:*:*:*:*:*:*

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