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CVE-2018-4474

25
FAUCET Score

CVE-2018-4474 is a memory consumption vulnerability (CWE-400) affecting multiple Apple products, including iCloud for Windows, watchOS, Safari, iOS, iTunes for Windows, and tvOS. This flaw, rated High severity with a CVSS score of 7.5, could lead to a denial of service (availability impact) due to an unexpected interaction causing an ASSERT failure. While no public exploits, Metasploit modules, or Nuclei templates are available, and there's no evidence of active exploitation or significant community discussion, Apple has released patches in various product updates to address the issue.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.7CPE matchmatch criteria
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
< 12.9CPE matchmatch criteria
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*
< 12CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
< 12.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 12CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.71%
Probability of exploitation in next 30 days
EPSS Percentile
74.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0171 is in the 57th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 / en-us/HT209106
Vendor Advisory
support.apple.com / en-us/HT209107
Vendor Advisory
support.apple.com / en-us/HT209108
Vendor Advisory
support.apple.com / en-us/HT209109
Vendor Advisory
support.apple.com / en-us/HT209140
Vendor Advisory
support.apple.com / en-us/HT209141
Vendor Advisory