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-2018-4273

22
FAUCET Score

CVE-2018-4273 addresses multiple memory corruption vulnerabilities stemming from insufficient input validation across several Apple products, including iOS, tvOS, watchOS, Safari, iTunes for Windows, and iCloud for Windows. With a CVSS score of 6.5 (Medium), this vulnerability requires user interaction (UI:R) and can lead to a high impact on availability (A:H) if successfully exploited over a network (AV:N). Despite its potential impact, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 11.1.2CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
< 11.4.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 11.4.1CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
< 4.3.2CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
< 7.6CPE matchmatch criteria
cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
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 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0206 is in the 90th percentile among its peer group of 26,234 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

support.apple.com / kb/HT208932
Vendor Advisory
support.apple.com / kb/HT208933
Vendor Advisory
support.apple.com / kb/HT208934
Vendor Advisory
support.apple.com / kb/HT208935
Vendor Advisory
support.apple.com / kb/HT208936
Vendor Advisory
support.apple.com / kb/HT208938
Vendor Advisory