Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-4163

26
FAUCET Score

CVE-2018-4163 is a critical memory corruption vulnerability within the WebKit component affecting various Apple products, including iOS, Safari, iCloud for Windows, iTunes for Windows, tvOS, and watchOS, all prior to their respective specified versions. This vulnerability allows remote attackers to execute arbitrary code or cause a denial of service through memory corruption and application crashes by enticing a user to visit a specially crafted website. Rated with a CVSS score of 8.8 (High), it presents a significant risk due to its network-based attack vector and low attack complexity, potentially leading to high confidentiality, integrity, and availability impacts. Despite its severity, there is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage, suggesting it has not garnered widespread attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 11.1CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
< 11.3CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 11.3CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
< 4.3CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
< 7.4CPE matchmatch criteria
cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:*

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
2.06%
Probability of exploitation in next 30 days
EPSS Percentile
79.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0206 is in the 79th percentile among its peer group of 14,875 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

security.gentoo.org / glsa/201808-04
Third Party Advisory
support.apple.com / HT208693
Vendor Advisory
support.apple.com / HT208694
Vendor Advisory
support.apple.com / HT208695
Vendor Advisory
support.apple.com / HT208696
Vendor Advisory
support.apple.com / HT208697
Vendor Advisory
support.apple.com / HT208698
Vendor Advisory
usn.ubuntu.com / 3635-1
Third Party Advisory
securitytracker.com / id/1040604
Third Party AdvisoryVDB Entry