Skip to content
Fencer Vulns
high 8.8

CVE-2018-4089 json

An issue was discovered in certain Apple products.

published 2018-04-03 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-15875

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.4%
EPSS 6.4% chance of exploitation in 30 days, percentile 93%
public exploits
1
Exploit-DB

Summary

An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. macOS before 10.13.3 is affected. Safari before 11.0.3 is affected. tvOS before 11.2.5 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Patch / fix

  • apple apple_tv 11.2.5
  • apple safari 11.0.3
  • apple iphone_os 11.2.5
  • apple mac_os_x 10.13.3
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.18.6-1

debian advisories DEBIAN-CVE-2018-4089

  • webkit2gtk Ubuntu 16.04 LTS 2.18.4-0ubuntu0.16.04.1
  • webkit2gtk Ubuntu 18.04 LTS 2.18.4-1

ubuntu advisories UBUNTU-CVE-2018-4089

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

Timeline

  1. First public exploit (EDB-43937)
  2. Published

Exploit prediction

6.39% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-43937 WebKit - 'detachWrapper' Use-After-Free dos, 2018-02-01

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 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.