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Fencer Vulns
high 7.8

CVE-2018-4237 in the critical feed json

An issue was discovered in certain Apple products.

published 2018-06-08 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16023

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.5%
EPSS 13.5% chance of exploitation in 30 days, percentile 96%
public exploits
2
Metasploit, Exploit-DB

Summary

An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "libxpc" component. It allows attackers to gain privileges via a crafted app that leverages a logic error.

Patch / fix

  • apple iphone_os 11.4
  • apple mac_os_x 10.13.5
  • apple tvos 11.4
  • apple watchos 4.3.1

Timeline

  1. First public exploit (Metasploit exploit/osx/local/libxpc_mitm_ssudo)
  2. Published

Exploit prediction

13.48% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.