How severe is CVE-2015-5903?

CVE-2015-5903 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2015-5903 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-2015-5903?

CVE-2015-5903 primarily affects Apple Mac Os X. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-5903?

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-2015-5903 published?

CVE-2015-5903 was published on 2015-09-18 and last updated on 2026-06-17.

CVE-2015-5903

CVE-2015-5903 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-119.

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-119
Affected product: Apple Mac Os X
Published: 2015-09-18
Last modified: 2026-06-17

Description

The kernel in Apple iOS before 9 allows local users to gain privileges or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2015-5868 and CVE-2015-5896.

Frequently asked questions

What is CVE-2015-5903?: The kernel in Apple iOS before 9 allows local users to gain privileges or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2015-5868 and CVE-2015-5896.
How severe is CVE-2015-5903?: CVE-2015-5903 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2015-5903 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-2015-5903?: CVE-2015-5903 primarily affects Apple Mac Os X. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-5903?: 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-2015-5903 published?: CVE-2015-5903 was published on 2015-09-18 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:1.0:*:*:*:*:*:*:*

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