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CVE-2018-4394

23
FAUCET Score

CVE-2018-4394 is a memory corruption vulnerability, categorized as CWE-119, affecting multiple Apple products including iOS, macOS, tvOS, watchOS, and iTunes versions prior to their respective 12.1/12.9.1 updates. With a CVSS score of 7.8 (High), this vulnerability could lead to high impact on confidentiality, integrity, and availability if a user is tricked into interacting with malicious input. While the EPSS score is low, indicating a low probability of exploitation, 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
< 12.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.14.1CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
< 12.1CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
< 5.1CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
< 12.9.1CPE matchmatch criteria
cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.93%
Probability of exploitation in next 30 days
EPSS Percentile
56.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0093 is in the 54th percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 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 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

support.apple.com / kb/HT209192
Vendor Advisory
support.apple.com / kb/HT209193
Vendor Advisory
support.apple.com / kb/HT209194
Vendor Advisory
support.apple.com / kb/HT209195
Vendor Advisory
support.apple.com / kb/HT209197
Vendor Advisory