How severe is CVE-2016-7603?

CVE-2016-7603 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-7603 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-7603?

CVE-2016-7603 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-7603?

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

When was CVE-2016-7603 published?

CVE-2016-7603 was published on 2017-02-20 and last updated on 2026-06-17.

CVE-2016-7603

CVE-2016-7603 is a medium-severity vulnerability in Apple Mac Os X with a CVSS 3.x base score of 5.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.9
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Apple Mac Os X
Published: 2017-02-20
Last modified: 2026-06-17

Description

An issue was discovered in certain Apple products. macOS before 10.12.2 is affected. The issue involves the "CoreStorage" component. It allows local users to cause a denial of service (NULL pointer dereference) via unspecified vectors.

Frequently asked questions

What is CVE-2016-7603?: An issue was discovered in certain Apple products. macOS before 10.12.2 is affected. The issue involves the "CoreStorage" component. It allows local users to cause a denial of service (NULL pointer dereference) via unspecified vectors.
How severe is CVE-2016-7603?: CVE-2016-7603 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-7603 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-7603?: CVE-2016-7603 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-7603?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-7603 published?: CVE-2016-7603 was published on 2017-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

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