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CVE-2018-4237

51
FAUCET Score

CVE-2018-4237 is a privilege escalation vulnerability affecting Apple's iOS before 11.4, macOS before 10.13.5, tvOS before 11.4, and watchOS before 4.3.1. The flaw resides in the "libxpc" component, allowing a crafted application to gain elevated privileges by exploiting a logic error. With a CVSS score of 7.8 (High), this vulnerability has a low attack complexity and requires user interaction, but can lead to high impact on confidentiality, integrity, and availability. While not listed on the KEV catalog, a Metasploit module exists for exploitation, indicating readily available exploit code. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
< 11.4CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.13.5CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
< 11.4CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
< 4.3.1CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

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
13.92%
Probability of exploitation in next 30 days
EPSS Percentile
96.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: Mac OS X libxpc MITM Privilege Escalation · Mar 15, 2018
ExploitDB: EDB-45916 · Nov 29, 2018
This CVE's current EPSS score of 0.1392 is in the 96th 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 / HT208848
Vendor Advisory
support.apple.com / HT208849
Vendor Advisory
support.apple.com / HT208850
Vendor Advisory
support.apple.com / HT208851
Vendor Advisory
exploit-db.com / exploits/45916
ExploitThird Party AdvisoryVDB Entry
securitytracker.com / id/1041027
Third Party AdvisoryVDB Entry