How severe is CVE-2013-5172?

CVE-2013-5172 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2013-5172 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-5172?

CVE-2013-5172 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-2013-5172?

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

When was CVE-2013-5172 published?

CVE-2013-5172 was published on 2013-10-24 and last updated on 2026-06-16.

CVE-2013-5172

CVE-2013-5172 is a high-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 7.1. 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-189.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Apple Mac Os X
Published: 2013-10-24
Last modified: 2026-06-16

Description

The kernel in Apple Mac OS X before 10.9 does not properly determine the output length for SHA-2 digest function calls, which allows context-dependent attackers to cause a denial of service (panic) by triggering a digest operation, as demonstrated by an IPSec connection.

Frequently asked questions

What is CVE-2013-5172?: The kernel in Apple Mac OS X before 10.9 does not properly determine the output length for SHA-2 digest function calls, which allows context-dependent attackers to cause a denial of service (panic) by triggering a digest operation, as demonstrated by an IPSec connection.
How severe is CVE-2013-5172?: CVE-2013-5172 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2013-5172 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-5172?: CVE-2013-5172 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-2013-5172?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-5172 published?: CVE-2013-5172 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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