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Fencer Intel
high 8.8

CVE-2018-4199 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-2018-15985

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.4%
EPSS 4.4% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iCloud before 7.5 on Windows is affected. iTunes before 12.7.5 on Windows is affected. tvOS before 11.4 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) via a crafted web site.

Patch / fix

  • apple safari 11.1.1
  • apple icloud 7.5
  • apple itunes 12.7.5
  • apple iphone_os 11.4
  • apple tvos 11.4
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.20.3-1

debian advisories DEBIAN-CVE-2018-4199

  • webkit2gtk Ubuntu 16.04 LTS 2.20.3-0ubuntu0.16.04.1
  • webkit2gtk Ubuntu 18.04 LTS 2.20.3-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-4199

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 SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +2 more 2.20.3-2.23.8
  • webkit2gtk3 SLE Module for Desktop Applications 15, SLE Module for Basesystem 15 2.20.3-3.3.1

suse advisories SUSE-SU-2018:3387-1SUSE-SU-2018:2075-1

Exploit prediction

4.40% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel 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.