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CVE-2016-4586

28
FAUCET Score

CVE-2016-4586 describes a memory corruption vulnerability in WebKit, affecting Apple Safari before version 9.1.2 and tvOS before 9.2.2. This high-severity flaw (CVSS 8.8) allows remote attackers to execute arbitrary code or cause a denial of service through a crafted website, requiring user interaction. Despite its high impact, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.1.2CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
< 9.2.2CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.34%
Probability of exploitation in next 30 days
EPSS Percentile
81.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0234 is in the 81st percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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/Jul/msg00003.html
Mailing ListVendor Advisory
lists.apple.com / archives/security-announce/2016/Jul/msg00004.html
Mailing ListVendor Advisory
packetstormsecurity.com / files/138502/WebKitGTK-SOP-Bypass-Information-Disclosure.html
Third Party AdvisoryVDB Entry
support.apple.com / HT206900
Vendor Advisory
support.apple.com / HT206905
Vendor Advisory
securityfocus.com / archive/1/539295/100/0/threaded
Third Party AdvisoryVDB Entry
securityfocus.com / bid/91827
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036343
Third Party AdvisoryVDB Entry