How severe is CVE-2016-4686?

CVE-2016-4686 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2016-4686 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4686?

CVE-2016-4686 affects Apple Iphone Os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-4686?

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

When was CVE-2016-4686 published?

CVE-2016-4686 was published on 2017-02-20 and last updated on 2026-06-17.

CVE-2016-4686

CVE-2016-4686 is a medium-severity vulnerability in Apple Iphone Os with a CVSS 3.x base score of 4.4. 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-264.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
CVSS v2: 3.6
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Apple Iphone Os
Published: 2017-02-20
Last modified: 2026-06-17

Description

An issue was discovered in certain Apple products. iOS before 10.1 is affected. The issue involves the "Contacts" component, which does not prevent an app's Address Book access after access revocation.

Frequently asked questions

What is CVE-2016-4686?: An issue was discovered in certain Apple products. iOS before 10.1 is affected. The issue involves the "Contacts" component, which does not prevent an app's Address Book access after access revocation.
How severe is CVE-2016-4686?: CVE-2016-4686 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2016-4686 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4686?: CVE-2016-4686 affects Apple Iphone Os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-4686?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4686 published?: CVE-2016-4686 was published on 2017-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

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