How severe is CVE-2016-4620?

CVE-2016-4620 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2016-4620 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4620?

CVE-2016-4620 affects Apple Iphone Os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-4620?

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

When was CVE-2016-4620 published?

CVE-2016-4620 was published on 2016-09-18 and last updated on 2026-06-17.

CVE-2016-4620

CVE-2016-4620 is a low-severity vulnerability in Apple Iphone Os with a CVSS 3.x base score of 3.3. 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: Low (CVSS 3.x base score 3.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Apple Iphone Os
Published: 2016-09-18
Last modified: 2026-06-17

Description

The Sandbox Profiles component in Apple iOS before 10 does not properly restrict access to directory metadata for SMS draft directories, which allows attackers to discover text-message recipients via a crafted app.

Frequently asked questions

What is CVE-2016-4620?: The Sandbox Profiles component in Apple iOS before 10 does not properly restrict access to directory metadata for SMS draft directories, which allows attackers to discover text-message recipients via a crafted app.
How severe is CVE-2016-4620?: CVE-2016-4620 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2016-4620 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4620?: CVE-2016-4620 affects Apple Iphone Os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-4620?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4620 published?: CVE-2016-4620 was published on 2016-09-18 and last updated on 2026-06-17.

References

Affected products (1)

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

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