How severe is CVE-2016-4618?

CVE-2016-4618 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2016-4618 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4618?

CVE-2016-4618 primarily affects Apple Safari. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4618?

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

When was CVE-2016-4618 published?

CVE-2016-4618 was published on 2016-09-25 and last updated on 2026-06-17.

CVE-2016-4618

CVE-2016-4618 is a medium-severity vulnerability in Apple Safari with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Apple Safari
Published: 2016-09-25
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in Safari Reader in Apple iOS before 10 and Safari before 10 allows remote attackers to inject arbitrary web script or HTML via a crafted web site, aka "Universal XSS (UXSS)."

Frequently asked questions

What is CVE-2016-4618?: Cross-site scripting (XSS) vulnerability in Safari Reader in Apple iOS before 10 and Safari before 10 allows remote attackers to inject arbitrary web script or HTML via a crafted web site, aka "Universal XSS (UXSS)."
How severe is CVE-2016-4618?: CVE-2016-4618 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2016-4618 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4618?: CVE-2016-4618 primarily affects Apple Safari. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4618?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4618 published?: CVE-2016-4618 was published on 2016-09-25 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:apple:safari:9.1.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

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