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CVE-2018-4209

28
FAUCET Score

CVE-2018-4209 describes an ASSERT failure due to an unexpected interaction in various Apple products, including iOS, Safari, iCloud for Windows, tvOS, watchOS, and iTunes for Windows. This vulnerability, rated 8.8 HIGH on the CVSS scale, could lead to high impact on confidentiality, integrity, and availability, requiring user interaction for exploitation. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

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
79.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0206 is in the 79th 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

support.apple.com / en-us/HT208693
Vendor Advisory
support.apple.com / en-us/HT208695
Vendor Advisory
support.apple.com / en-us/HT208696
Vendor Advisory
support.apple.com / en-us/HT208697
Vendor Advisory
support.apple.com / en-us/HT208698
Vendor Advisory
security.gentoo.org / glsa/201812-04
Third Party Advisory
support.apple.com / HT208693%2C
support.apple.com / HT208694
Vendor Advisory
support.apple.com / HT208695%2C
support.apple.com / HT208696%2C
support.apple.com / HT208697%2C
support.apple.com / HT208698%2C
usn.ubuntu.com / 3781-1
Third Party Advisory