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Fencer Vulns
high 8.8

CVE-2018-4210 json

In iOS before 11.3, Safari before 11.1, tvOS before 11.3, watchOS before 4.3, iTunes before 12.7.4 for Windows, an array indexing issue exi…

published 2019-01-11 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-15996

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

In iOS before 11.3, Safari before 11.1, tvOS before 11.3, watchOS before 4.3, iTunes before 12.7.4 for Windows, an array indexing issue existed in the handling of a function in javascript core. This issue was addressed with improved checks.

Patch / fix

  • apple safari 11.1
  • apple itunes 12.7.4
  • webkitgtk webkitgtk+ 2.22.0
  • apple iphone_os 11.3
  • apple tvos 11.3
  • apple watchos 4.3
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.22.0-2

debian advisories DEBIAN-CVE-2018-4210

  • webkit2gtk Ubuntu 18.04 LTS 2.22.2-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-4210

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • webkit2gtk3 SLE Module for Desktop Applications 15, SLE Module for Basesystem 15 2.22.5-3.13.1
  • webkit2gtk3 SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES for SAP 12 SP2 +12 more 2.22.4-2.29.3

suse advisories SUSE-SU-2019:0092-1SUSE-SU-2019:0059-1

  • webkit2gtk3 openSUSE Leap 15.0 2.22.5-lp150.2.9.1

opensuse advisories openSUSE-SU-2019:0081-1

Exploit prediction

2.25% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/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

Classification

Weakness
  • CWE-129 Improper Validation of Array Index

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.