How severe is CVE-2013-5167?

CVE-2013-5167 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2013-5167 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-5167?

CVE-2013-5167 primarily affects Apple Mac Os X. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-5167?

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

When was CVE-2013-5167 published?

CVE-2013-5167 was published on 2013-10-24 and last updated on 2026-06-16.

CVE-2013-5167

CVE-2013-5167 is a medium-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 5.0. 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-16.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-16
Affected product: Apple Mac Os X
Published: 2013-10-24
Last modified: 2026-06-16

Description

CFNetwork in Apple Mac OS X before 10.9 does not properly support Safari's deletion of session cookies in response to a reset operation, which makes it easier for remote web servers to track users via Set-Cookie HTTP headers.

Frequently asked questions

What is CVE-2013-5167?: CFNetwork in Apple Mac OS X before 10.9 does not properly support Safari's deletion of session cookies in response to a reset operation, which makes it easier for remote web servers to track users via Set-Cookie HTTP headers.
How severe is CVE-2013-5167?: CVE-2013-5167 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2013-5167 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-5167?: CVE-2013-5167 primarily affects Apple Mac Os X. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-5167?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-5167 published?: CVE-2013-5167 was published on 2013-10-24 and last updated on 2026-06-16.

References

http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html

Affected products (7)

cpe:2.3:o:apple:mac_os_x:*:supplemental_update:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.8.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.8.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.8.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.8.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.8.4:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.8.5:*:*:*:*:*:*:*

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