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CVE-2018-4441

46
FAUCET Score

CVE-2018-4441 describes a critical memory corruption vulnerability (CWE-119) affecting various Apple products including iOS, tvOS, watchOS, Safari, iTunes for Windows, and iCloud for Windows. This flaw, addressed in updates prior to iOS 12.1.1 and similar versions, stems from inadequate memory handling. With a CVSS score of 8.8 (HIGH), it allows for remote code execution with high impact on confidentiality, integrity, and availability, requiring user interaction. While not listed on CISA's KEV catalog, proof-of-concept exploits exist on ExploitDB, demonstrating its potential for exploitation, particularly within WebKit, though it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 12.0.2CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
< 12.1.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 12.1.1CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
< 5.1.2CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
< 7.9CPE 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
12.81%
Probability of exploitation in next 30 days
EPSS Percentile
95.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-23
Model: v2026.06.15
ExploitDB: EDB-46522 · Mar 8, 2019
This CVE's current EPSS score of 0.1281 is in the 96th percentile among its peer group of 14,824 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 / kb/HT209340
Vendor Advisory
support.apple.com / kb/HT209342
Vendor Advisory
support.apple.com / kb/HT209343
Vendor Advisory
support.apple.com / kb/HT209344
Vendor Advisory
support.apple.com / kb/HT209345
Vendor Advisory
support.apple.com / kb/HT209346
Vendor Advisory