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Fencer Intel
high 8.8

CVE-2017-13866 json

An issue was discovered in certain Apple products.

published 2017-12-25 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-5381

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

An issue was discovered in certain Apple products. iOS before 11.2 is affected. Safari before 11.0.2 is affected. iCloud before 7.2 on Windows is affected. iTunes before 12.7.2 on Windows is affected. tvOS before 11.2 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 safari 11.0.2
  • apple icloud 7.2
  • apple itunes 12.7.2
  • apple iphone_os 11.2
  • apple tvos 11.2
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.18.4-1

debian advisories DEBIAN-CVE-2017-13866

  • webkit2gtk Ubuntu 16.04 LTS 2.18.4-0ubuntu0.16.04.1

ubuntu advisories UBUNTU-CVE-2017-13866

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 for SAP 12 SP2, SLES for Raspberry Pi 12 SP2 +8 more 2.18.5-2.18.1

suse advisories SUSE-SU-2018:0219-1

  • gtk3 openSUSE Tumbleweed 2.32.4-1.1

opensuse advisories openSUSE-SU-2024:11506-1

  • webkit2gtk Alpine 3.20, Alpine 3.19, Alpine 3.18 +11 more 2.18.4-r0

alpine advisories ALPINE-CVE-2017-13866

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-13866 updated cvss 6.3

webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution

  • Red Hat Enterprise Linux 6 webkitgtk Red Hat Enterprise Linux 7 webkitgtk3, webkitgtk4, libwebkit2gtk, webkitgtk4-jsc, webkitgtk4-plugin-process-gtk2
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 8 webkitgtk4
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.40% chance of exploitation in the next 30 days, higher than 84% 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.