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CVE-2018-4220

28
FAUCET Score

CVE-2018-4220 is a high-severity vulnerability affecting Swift for Ubuntu versions prior to 4.1.1 Security Update 2018-001. This flaw allows remote attackers to execute arbitrary code in a privileged context due to improper write and execute permissions during library loading. With a CVSS score of 8.8, it presents a significant risk, as an unauthenticated attacker can exploit it with low complexity, leading to high impacts on confidentiality, integrity, and availability. While no public exploit code (Metasploit, Nuclei, ExploitDB) or active exploitation (KEV) has been observed, and community discussion and media coverage are minimal, the potential for severe compromise warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.1.1CPE matchmatch criteria
cpe:2.3:a:apple:swift:*:*:*:*:*:ubuntu:*:*

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
2.20%
Probability of exploitation in next 30 days
EPSS Percentile
80.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0220 is in the 80th percentile among its peer group of 14,825 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 / HT208804
Vendor Advisory
securityfocus.com / bid/104085
Third Party AdvisoryVDB Entry