How severe is CVE-2016-4707?

CVE-2016-4707 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2016-4707 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4707?

CVE-2016-4707 primarily affects Apple Iphone Os. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4707?

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

When was CVE-2016-4707 published?

CVE-2016-4707 was published on 2016-09-25 and last updated on 2026-06-17.

CVE-2016-4707

CVE-2016-4707 is a medium-severity vulnerability in Apple Iphone Os with a CVSS 3.x base score of 4.0. 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-19.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
CVSS v2: 2.1
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-19
Affected product: Apple Iphone Os
Published: 2016-09-25
Last modified: 2026-06-17

Description

CFNetwork in Apple iOS before 10 and OS X before 10.12 mishandles Local Storage deletion, which allows local users to discover the visited web sites of arbitrary users via unspecified vectors.

Frequently asked questions

What is CVE-2016-4707?: CFNetwork in Apple iOS before 10 and OS X before 10.12 mishandles Local Storage deletion, which allows local users to discover the visited web sites of arbitrary users via unspecified vectors.
How severe is CVE-2016-4707?: CVE-2016-4707 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2016-4707 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4707?: CVE-2016-4707 primarily affects Apple Iphone Os. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4707?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4707 published?: CVE-2016-4707 was published on 2016-09-25 and last updated on 2026-06-17.

References

Affected products (2)

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

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