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CVE-2016-4734

30
FAUCET Score

CVE-2016-4734 is a critical memory corruption vulnerability in WebKit affecting Apple iOS before version 10, Safari before version 10, and tvOS before version 10. This flaw allows remote attackers to execute arbitrary code or cause a denial of service simply by enticing a user to visit a crafted website. With a CVSSv3 score of 9.6 (CRITICAL), this vulnerability has a network-based attack vector, low attack complexity, and requires user interaction, but can lead to high impacts on confidentiality, integrity, and availability. The EPSS score and FAUCET Risk Score indicate a significant potential for exploitation. Despite its high severity, there is no evidence of active exploitation (not in KEV), nor are there public exploit modules available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are also minimal, suggesting it has not garnered significant public attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
< 10.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.0CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.6CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.27%
Probability of exploitation in next 30 days
EPSS Percentile
87.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0327 is in the 92nd percentile among its peer group of 834 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

lists.apple.com / archives/security-announce/2016/Sep/msg00007.html
Mailing List
lists.apple.com / archives/security-announce/2016/Sep/msg00008.html
Mailing List
lists.apple.com / archives/security-announce/2016/Sep/msg00011.html
Mailing List
support.apple.com / HT207142
Vendor Advisory
support.apple.com / HT207143
Vendor Advisory
support.apple.com / HT207157
Vendor Advisory
securityfocus.com / bid/93057
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036854
Third Party AdvisoryVDB Entry