How severe is CVE-2016-4752?

CVE-2016-4752 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-4752 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4752?

CVE-2016-4752 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-4752?

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

When was CVE-2016-4752 published?

CVE-2016-4752 was published on 2016-09-25 and last updated on 2026-06-17.

CVE-2016-4752

CVE-2016-4752 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Apple Mac Os X
Published: 2016-09-25
Last modified: 2026-06-17

Description

The SecKeyDeriveFromPassword function in Apple OS X before 10.12 does not use the CF_RETURNS_RETAINED keyword, which allows attackers to obtain sensitive information from process memory by triggering key derivation.

Frequently asked questions

What is CVE-2016-4752?: The SecKeyDeriveFromPassword function in Apple OS X before 10.12 does not use the CF_RETURNS_RETAINED keyword, which allows attackers to obtain sensitive information from process memory by triggering key derivation.
How severe is CVE-2016-4752?: CVE-2016-4752 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-4752 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4752?: CVE-2016-4752 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-4752?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4752 published?: CVE-2016-4752 was published on 2016-09-25 and last updated on 2026-06-17.

References

Affected products (1)

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

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