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Fencer Vulns
high 8.8

CVE-2019-8720 kev in the critical feed json

A vulnerability was found in WebKit.

published 2023-03-06 3 y ago modified 2026-10-08 31 d ago also EUVD-2019-18110

cvss
8.8
version 3.1, CNA
cisa kev
Exploited
added 2022-05-23
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • webkitgtk webkitgtk 2.26.0
  • wpewebkit wpe_webkit 2.26.0
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.26.0-1

debian advisories DEBIAN-CVE-2019-8720

  • webkit2gtk Ubuntu 18.04 LTS 2.26.1-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2019-8720

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

  • LibRaw RHEL 8 0.19.5-2.el8
  • webkit2gtk3 RHEL 8 2.28.4-1.el8
  • webkit2gtk3-jsc RHEL 8 2.28.4-1.el8
  • gnome-settings-daemon RHEL 8 3.32.0-11.el8
  • webkitgtk4 RHEL 7 2.28.2-2.el7
  • webkitgtk4-jsc RHEL 7 2.28.2-2.el7

red hat advisories RHSA-2020:4451RHSA-2020:4035

  • webkit2gtk3 SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +15 more 2.28.1-2.50.3
  • webkit2gtk3 SLE Module for Desktop Applications 15 SP1, SLE Module for Desktop Applications 15, SLE Module for Basesystem 15 SP1 +1 more 2.26.2-3.34.3

suse advisories SUSE-SU-2020:1135-1SUSE-SU-2019:3044-1

  • webkit2gtk3 openSUSE Leap 15.1 2.26.2-lp151.2.9.1
  • webkit2gtk3 openSUSE Leap 15.0 2.26.2-lp150.2.28.1

opensuse advisories openSUSE-SU-2019:2591-1openSUSE-SU-2019:2587-1

  • gvfs AlmaLinux 8 1.36.2-10.el8
  • vte291 AlmaLinux 8 0.52.4-2.el8
  • libsoup AlmaLinux 8 2.62.3-2.el8
  • potrace AlmaLinux 8 1.15-3.el8
  • tracker AlmaLinux 8 2.1.5-2.el8
  • nautilus AlmaLinux 8 3.28.1-14.el8
  • pipewire AlmaLinux 8 0.3.6-1.el8
  • PackageKit AlmaLinux 8 1.1.12-6.el8

almalinux advisories ALSA-2020:4451

  • gtk3 Rocky Linux 8 3.22.30-6.el8
  • LibRaw Rocky Linux 8 0.19.5-2.el8
  • vte291 Rocky Linux 8 0.52.4-2.el8
  • libsoup Rocky Linux 8 2.62.3-2.el8
  • potrace Rocky Linux 8 1.15-3.el8
  • tracker Rocky Linux 8 2.1.5-2.el8
  • pipewire Rocky Linux 8 0.3.6-1.el8
  • PackageKit Rocky Linux 8 1.1.12-6.el8

rocky linux advisories RLSA-2020:4451

  • webkit2gtk Alpine 3.20, Alpine 3.19, Alpine 3.18 +8 more 2.26.0-r0

alpine advisories ALPINE-CVE-2019-8720

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-2019-8720 updated cvss 8.8

webkitgtk: Multiple memory corruption issues leading to arbitrary code execution

  • Red Hat Enterprise Linux 6 webkitgtk Red Hat Enterprise Linux 7 webkitgtk3, libwebkit2gtk
    affected: workaround, no fix planned “Red Hat has investigated whether possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.”
  • Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3 2.28.4-1.el8, webkit2gtk3-jsc 2.28.4-1.el8
    fixed: vendor fix “Red Hat has investigated whether possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHSA-2020:4451
  • Red Hat Enterprise Linux Client (v. 7) webkitgtk4 2.28.2-2.el7, webkitgtk4-jsc 2.28.2-2.el7 Red Hat Enterprise Linux Client Optional (v. 7) webkitgtk4-doc 2.28.2-2.el7, webkitgtk4-devel 2.28.2-2.el7, webkitgtk4-debuginfo 2.28.2-2.el7, webkitgtk4-jsc-devel 2.28.2-2.el7 Red Hat Enterprise Linux ComputeNode (v. 7) webkitgtk4 2.28.2-2.el7, webkitgtk4-jsc 2.28.2-2.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) webkitgtk4-doc 2.28.2-2.el7, webkitgtk4-devel 2.28.2-2.el7, webkitgtk4-debuginfo 2.28.2-2.el7, webkitgtk4-jsc-devel 2.28.2-2.el7 Red Hat Enterprise Linux Server (v. 7) webkitgtk4 2.28.2-2.el7, webkitgtk4-jsc 2.28.2-2.el7 Red Hat Enterprise Linux Server Optional (v. 7) webkitgtk4-doc 2.28.2-2.el7, webkitgtk4-devel 2.28.2-2.el7, webkitgtk4-debuginfo 2.28.2-2.el7, webkitgtk4-jsc-devel 2.28.2-2.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) webkitgtk4 2.28.2-2.el7, webkitgtk4-jsc 2.28.2-2.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) webkitgtk4-doc 2.28.2-2.el7
    fixed: vendor fix “Red Hat has investigated whether possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHSA-2020:4035
  • Red Hat CodeReady Linux Builder (v. 8) gvfs 1.36.2-10.el8, nautilus 3.28.1-14.el8, frei0r-plugins 1.6.1-7.el8 Red Hat Enterprise Linux AppStream (v. 8) gdm 3.28.3-34.el8, gtk3 3.22.30-6.el8, gvfs 1.36.2-10.el8, potrace 1.15-3.el8, LibRaw 0.19.5-2.el8, tracker 2.1.5-2.el8, +72 more Red Hat Enterprise Linux BaseOS (v. 8) libsoup 2.62.3-2.el8, pygobject3 3.28.3-2.el8, python3-gobject-base 3.28.3-2.el8, gsettings-desktop-schemas 3.32.0-5.el8
    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

Timeline

  1. Added to CISA KEV
  2. CISA patch deadline
  3. Published
  4. CISA SSVC: exploitation active

Known exploited

Added
4 y ago
Patch by
2022-06-13 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
WebKitGTK, WebKitGTK
CISA name
WebKitGTK Memory Corruption Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • n/a webkitgtk

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.