CVE-2019-8558 — webkitgtk: malicious crafted web content leads to arbitrary code execution

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HIGH

webkitgtk: malicious crafted web content leads to arbitrary code execution

Published Dec 18, 2019

8.8

HIGH

CVSS 3.1

EPSS 7.54%

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

Affected products

Vendor Apple Product Safari Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <Safari 12.1
Vendor Apple Product iCloud for Windows Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <iCloud for Windows 7.11
Vendor Apple Product iOS Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <iOS 12.2
Vendor Apple Product iTunes for Windows Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <iTunes 12.9.4 for Windows
Vendor Apple Product tvOS Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <tvOS 12.2
Vendor Apple Product watchOS Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <watchOS 5.2

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Apple

Safari

n/a

Version	Status	Constraints
unspecified	affected	<Safari 12.1

Apple

iCloud for Windows

n/a

Version	Status	Constraints
unspecified	affected	<iCloud for Windows 7.11

Apple

iOS

n/a

Version	Status	Constraints
unspecified	affected	<iOS 12.2

Apple

iTunes for Windows

n/a

Version	Status	Constraints
unspecified	affected	<iTunes 12.9.4 for Windows

Apple

tvOS

n/a

Version	Status	Constraints
unspecified	affected	<tvOS 12.2

Apple

watchOS

n/a

Version	Status	Constraints
unspecified	affected	<watchOS 5.2

Red Hat Enterprise Linux 7

webkitgtk4-0:2.28.2-2.el7

Fixed · RHSA-2020:4035
Red Hat Enterprise Linux 8

SDL-0:1.2.15-35.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

SDL-0:1.2.15-35.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

accountsservice-0:0.6.50-7.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

accountsservice-0:0.6.50-7.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

appstream-data-0:8-20190805.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

appstream-data-0:8-20190805.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

baobab-0:3.28.0-2.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

baobab-0:3.28.0-2.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

chrome-gnome-shell-0:10.1-6.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

chrome-gnome-shell-0:10.1-6.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

evince-0:3.28.4-3.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

evince-0:3.28.4-3.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

file-roller-0:3.28.1-2.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

file-roller-0:3.28.1-2.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gdk-pixbuf2-0:2.36.12-5.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gdk-pixbuf2-0:2.36.12-5.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gdm-1:3.28.3-22.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gdm-1:3.28.3-22.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gjs-0:1.56.2-3.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gjs-0:1.56.2-3.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-control-center-0:3.28.2-5.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-control-center-0:3.28.2-5.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-desktop3-0:3.32.2-1.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-desktop3-0:3.32.2-1.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-remote-desktop-0:0.1.6-5.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-remote-desktop-0:0.1.6-5.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-settings-daemon-0:3.32.0-4.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-settings-daemon-0:3.32.0-4.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-shell-0:3.32.2-9.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-shell-0:3.32.2-9.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-shell-extensions-0:3.32.1-10.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-shell-extensions-0:3.32.1-10.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-software-0:3.30.6-2.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-software-0:3.30.6-2.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-tweaks-0:3.28.1-6.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gnome-tweaks-0:3.28.1-6.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gsettings-desktop-schemas-0:3.32.0-3.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gsettings-desktop-schemas-0:3.32.0-3.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gtk3-0:3.22.30-4.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gtk3-0:3.22.30-4.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gvfs-0:1.36.2-6.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

gvfs-0:1.36.2-6.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

mozjs60-0:60.9.0-3.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

mozjs60-0:60.9.0-3.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

mutter-0:3.32.2-10.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

mutter-0:3.32.2-10.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

nautilus-0:3.28.1-10.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

nautilus-0:3.28.1-10.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

pango-0:1.42.4-6.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

pango-0:1.42.4-6.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

pidgin-0:2.13.0-5.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

pidgin-0:2.13.0-5.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

plymouth-0:0.9.3-15.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

plymouth-0:0.9.3-15.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

wayland-protocols-0:1.17-1.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

wayland-protocols-0:1.17-1.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

webkit2gtk3-0:2.24.3-1.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 8

webkit2gtk3-0:2.24.3-1.el8

Fixed · RHSA-2019:3553
Red Hat Enterprise Linux 6

webkitgtk

Out of support scope
Red Hat Enterprise Linux 7

webkitgtk3

Will not fix

Product	Package	State	Advisory
Red Hat Enterprise Linux 7	webkitgtk4-0:2.28.2-2.el7	Fixed	RHSA-2020:4035
Red Hat Enterprise Linux 8	SDL-0:1.2.15-35.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	SDL-0:1.2.15-35.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	accountsservice-0:0.6.50-7.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	accountsservice-0:0.6.50-7.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	appstream-data-0:8-20190805.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	appstream-data-0:8-20190805.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	baobab-0:3.28.0-2.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	baobab-0:3.28.0-2.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	chrome-gnome-shell-0:10.1-6.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	chrome-gnome-shell-0:10.1-6.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	evince-0:3.28.4-3.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	evince-0:3.28.4-3.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	file-roller-0:3.28.1-2.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	file-roller-0:3.28.1-2.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gdk-pixbuf2-0:2.36.12-5.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gdk-pixbuf2-0:2.36.12-5.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gdm-1:3.28.3-22.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gdm-1:3.28.3-22.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gjs-0:1.56.2-3.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gjs-0:1.56.2-3.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-control-center-0:3.28.2-5.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-control-center-0:3.28.2-5.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-desktop3-0:3.32.2-1.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-desktop3-0:3.32.2-1.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-remote-desktop-0:0.1.6-5.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-remote-desktop-0:0.1.6-5.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-settings-daemon-0:3.32.0-4.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-settings-daemon-0:3.32.0-4.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-shell-0:3.32.2-9.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-shell-0:3.32.2-9.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-shell-extensions-0:3.32.1-10.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-shell-extensions-0:3.32.1-10.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-software-0:3.30.6-2.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-software-0:3.30.6-2.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-tweaks-0:3.28.1-6.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gnome-tweaks-0:3.28.1-6.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gsettings-desktop-schemas-0:3.32.0-3.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gsettings-desktop-schemas-0:3.32.0-3.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gtk3-0:3.22.30-4.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gtk3-0:3.22.30-4.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gvfs-0:1.36.2-6.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	gvfs-0:1.36.2-6.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	mozjs60-0:60.9.0-3.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	mozjs60-0:60.9.0-3.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	mutter-0:3.32.2-10.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	mutter-0:3.32.2-10.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	nautilus-0:3.28.1-10.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	nautilus-0:3.28.1-10.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	pango-0:1.42.4-6.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	pango-0:1.42.4-6.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	pidgin-0:2.13.0-5.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	pidgin-0:2.13.0-5.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	plymouth-0:0.9.3-15.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	plymouth-0:0.9.3-15.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	wayland-protocols-0:1.17-1.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	wayland-protocols-0:1.17-1.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	webkit2gtk3-0:2.24.3-1.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 8	webkit2gtk3-0:2.24.3-1.el8	Fixed	RHSA-2019:3553
Red Hat Enterprise Linux 6	webkitgtk	Out of support scope	n/a
Red Hat Enterprise Linux 7	webkitgtk3	Will not fix	n/a

Remediation

No remediation recorded yet.

Metrics

7.54% 0.07536

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.07536

Score over time

2021–2026

EPSS v1
EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v1
EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (34 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	7.54% (0.07536)	94.32th	v5 (v2026.06.15)
Jun 15, 2026	7.50% (0.07502)	93.68th	v5 (v2026.06.15)
Nov 21, 2025	15.26% (0.15256)	94.34th	v4 (v2025.03.14)
Nov 18, 2025	35.15% (0.35155)	96.81th	v4 (v2025.03.14)
Mar 30, 2025	15.26% (0.15256)	94.04th	v4 (v2025.03.14)
Mar 29, 2025	17.88% (0.17884)	91.99th	v4 (v2025.03.14)
Mar 17, 2025	15.26% (0.15256)	94.10th	v4 (v2025.03.14)
Feb 3, 2025	60.27% (0.60274)	97.96th	v3 (v2023.03.01)
Jan 15, 2025	66.71% (0.66709)	98.12th	v3 (v2023.03.01)
Dec 29, 2024	69.66% (0.69665)	98.20th	v3 (v2023.03.01)
Dec 17, 2024	73.73% (0.73729)	98.31th	v3 (v2023.03.01)
Dec 11, 2024	80.51% (0.80511)	98.44th	v3 (v2023.03.01)
Sep 3, 2024	77.84% (0.77836)	98.30th	v3 (v2023.03.01)
Aug 14, 2024	75.05% (0.75054)	98.20th	v3 (v2023.03.01)
Aug 2, 2024	77.85% (0.77848)	98.27th	v3 (v2023.03.01)
Jul 13, 2024	76.57% (0.76567)	98.22th	v3 (v2023.03.01)
Nov 24, 2023	83.97% (0.83972)	98.16th	v3 (v2023.03.01)
Oct 22, 2023	83.63% (0.83634)	98.07th	v3 (v2023.03.01)
Oct 7, 2023	81.37% (0.81374)	97.96th	v3 (v2023.03.01)
Sep 19, 2023	80.30% (0.80300)	97.91th	v3 (v2023.03.01)
Sep 4, 2023	80.21% (0.80207)	97.89th	v3 (v2023.03.01)
Aug 17, 2023	78.66% (0.78657)	97.83th	v3 (v2023.03.01)
Jul 15, 2023	77.45% (0.77455)	97.78th	v3 (v2023.03.01)
Jun 9, 2023	80.68% (0.80676)	97.84th	v3 (v2023.03.01)
May 7, 2023	78.85% (0.78849)	97.74th	v3 (v2023.03.01)
Apr 5, 2023	80.88% (0.80880)	97.77th	v3 (v2023.03.01)
Mar 7, 2023	83.50% (0.83496)	97.83th	v3 (v2023.03.01)
Mar 6, 2023	15.95% (0.15945)	96.10th	v2 (v2022.01.01)
Apr 1, 2022	15.95% (0.15945)	95.74th	v2 (v2022.01.01)
Feb 4, 2022	42.33% (0.42334)	97.60th	v2 (v2022.01.01)
Feb 3, 2022	1.46% (0.01457)	32.68th	v1
Jan 6, 2022	1.46% (0.01457)	31.97th	v1
Sep 1, 2021	1.46% (0.01457)	71.88th	v1
Apr 14, 2021	1.46% (0.01457)	0.00th	v1

Weaknesses (2)

CWE-787

Out-of-bounds Write

CWE-94

Code Injection

References (10)

https://access.redhat.com/security/cve/CVE-2019-8558
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1719231
Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2019-8558
https://support.apple.com/HT209599
x_refsource_MISCVendor Advisory
https://support.apple.com/HT209601
x_refsource_MISCVendor Advisory
https://support.apple.com/HT209602
x_refsource_MISCVendor Advisory
https://support.apple.com/HT209603
x_refsource_MISCVendor Advisory
https://support.apple.com/HT209604
x_refsource_MISCVendor Advisory
https://support.apple.com/HT209605
x_refsource_MISCVendor Advisory
https://www.cve.org/CVERecord?id=CVE-2019-8558

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2019-8558		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1719231		Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2019-8558
https://support.apple.com/HT209599		x_refsource_MISCVendor Advisory
https://support.apple.com/HT209601		x_refsource_MISCVendor Advisory
https://support.apple.com/HT209602		x_refsource_MISCVendor Advisory
https://support.apple.com/HT209603		x_refsource_MISCVendor Advisory
https://support.apple.com/HT209604		x_refsource_MISCVendor Advisory
https://support.apple.com/HT209605		x_refsource_MISCVendor Advisory
https://www.cve.org/CVERecord?id=CVE-2019-8558