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Fencer Vulns
high 8.8

CVE-2023-43010 json

The issue was addressed with improved memory handling.

published 2026-03-12 7 mo ago modified 2026-09-01 2 mo ago also EUVD-2023-47431

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

The issue was addressed with improved memory handling. This issue is fixed in iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2, Safari 17.2, iOS 16.7.15 and iPadOS 16.7.15, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.

Patch / fix

  • Apple iOS and iPadOS 15.8.7, 16.7.15, 17.2
  • Apple Safari 17.2
  • Apple macOS 14.2
  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:2.48.3-2.el7_9
  • Red Hat Red Hat Enterprise Linux 8 0:2.46.3-1.el8_10
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:2.46.3-1.el8_2
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:2.46.3-1.el8_4
  • Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service 0:2.46.3-1.el8_4
  • Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions 0:2.46.3-1.el8_4
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:2.46.3-1.el8_6
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:2.46.3-1.el8_6
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:2.46.3-1.el8_6
  • Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support 0:2.46.3-1.el8_8
  • Red Hat Red Hat Enterprise Linux 9 0:2.44.3-2.el9, 0:2.46.1-2.el9_4
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:2.46.1-1.el9_0
  • Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support 0:2.46.1-1.el9_2
  • wpewebkit Debian 14, Debian 13 2.44.1-1
  • webkit2gtk Debian 12 2.44.1-1~deb12u1
  • webkit2gtk Debian 14, Debian 13 2.44.0-1

debian advisories DEBIAN-CVE-2023-43010

  • webkit2gtk Ubuntu 22.04 LTS 2.44.3-0ubuntu0.22.04.1
  • webkit2gtk Ubuntu 24.04 LTS 2.44.3-0ubuntu0.24.04.1

ubuntu advisories UBUNTU-CVE-2023-43010

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 RHEL 8 2.46.3-1.el8_10
  • webkit2gtk3-jsc RHEL 8 2.46.3-1.el8_10
  • webkit2gtk3 RHEL 9 2.44.3-2.el9
  • webkit2gtk3-jsc RHEL 9 2.44.3-2.el9
  • webkit2gtk3 RHEL 9 2.46.1-2.el9_4
  • webkit2gtk3-jsc RHEL 9 2.46.1-2.el9_4
  • webkitgtk4 RHEL 7 ELS 2.48.3-2.el7_9
  • webkitgtk4-jsc RHEL 7 ELS 2.48.3-2.el7_9

red hat advisories RHSA-2025:10364RHSA-2024:9636RHSA-2024:9679RHSA-2024:9646RHSA-2024:9680RHSA-2024:9653

  • webkit2gtk3 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Desktop Applications 15 SP7 +1 more 2.52.1-150600.12.63.1
  • webkit2gtk4 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Development Tools 15 SP7 +2 more 2.52.1-150600.12.63.1
  • webkit2gtk3-soup2 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Basesystem 15 SP7 +1 more 2.52.1-150600.12.63.1
  • webkit2gtk3 SLES for SAP applications 16.0, SLES 16.0 2.52.1-160000.1.1
  • webkit2gtk4 SLES for SAP applications 16.0, SLES 16.0 2.52.1-160000.1.1
  • webkit2gtk3 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.0-150400.4.137.3
  • webkit2gtk4 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.0-150400.4.137.3
  • webkit2gtk3-soup2 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.0-150400.4.137.3

suse advisories SUSE-SU-2026:1364-1SUSE-SU-2026:21180-1SUSE-SU-2026:1150-1SUSE-SU-2026:1139-1

  • webkit2gtk3 openSUSE Leap 16.0 2.52.1-160000.1.1
  • webkit2gtk4 openSUSE Leap 16.0 2.52.1-160000.1.1
  • webkit2gtk3-soup2 openSUSE Leap 16.0 2.52.1-160000.1.1

opensuse advisories openSUSE-SU-2026:20518-1

  • webkit2gtk3 AlmaLinux 8 2.46.3-1.el8_10
  • webkit2gtk3-jsc AlmaLinux 8 2.46.3-1.el8_10

almalinux advisories ALSA-2024:9636

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-2023-43010 updated cvss 8.8

webkitgtk: Processing maliciously crafted web content may lead to memory corruption

  • Red Hat Enterprise Linux 6 webkitgtk
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3 2.46.3-1.el8_10, webkit2gtk3-jsc 2.46.3-1.el8_10
    fixed: vendor fix RHSA-2024:9636
  • Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3 2.44.3-2.el9, webkit2gtk3 2.46.1-2.el9_4, webkit2gtk3-jsc 2.44.3-2.el9, webkit2gtk3-jsc 2.46.1-2.el9_4
    fixed: vendor fix RHSA-2024:8180
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) webkit2gtk3 2.46.3-1.el8_2, webkit2gtk3-jsc 2.46.3-1.el8_2
    fixed: vendor fix RHSA-2024:9680
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) webkit2gtk3 2.46.3-1.el8_4, webkit2gtk3-jsc 2.46.3-1.el8_4
    fixed: vendor fix RHSA-2024:9679
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) webkit2gtk3 2.46.3-1.el8_6, webkit2gtk3-jsc 2.46.3-1.el8_6
    fixed: vendor fix RHSA-2024:9653
  • Red Hat Enterprise Linux AppStream E4S (v.8.4) webkit2gtk3 2.46.3-1.el8_4, webkit2gtk3-jsc 2.46.3-1.el8_4
    fixed: vendor fix RHSA-2024:9679
  • Red Hat Enterprise Linux AppStream E4S (v.8.6) webkit2gtk3 2.46.3-1.el8_6, webkit2gtk3-jsc 2.46.3-1.el8_6
    fixed: vendor fix RHSA-2024:9653
show 7 more
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) webkit2gtk3 2.46.1-1.el9_0, webkit2gtk3-jsc 2.46.1-1.el9_0
    fixed: vendor fix RHSA-2024:8496
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) webkit2gtk3 2.46.3-1.el8_8, webkit2gtk3-jsc 2.46.3-1.el8_8
    fixed: vendor fix RHSA-2024:9646
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) webkit2gtk3 2.46.1-1.el9_2, webkit2gtk3-jsc 2.46.1-1.el9_2
    fixed: vendor fix RHSA-2024:8492
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) webkit2gtk3 2.46.3-1.el8_4, webkit2gtk3-jsc 2.46.3-1.el8_4
    fixed: vendor fix RHSA-2024:9679
  • Red Hat Enterprise Linux AppStream TUS (v.8.6) webkit2gtk3 2.46.3-1.el8_6, webkit2gtk3-jsc 2.46.3-1.el8_6
    fixed: vendor fix RHSA-2024:9653
  • Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4 2.48.3-2.el7_9, webkitgtk4-jsc 2.48.3-2.el7_9 Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-doc 2.48.3-2.el7_9, webkitgtk4-devel 2.48.3-2.el7_9, webkitgtk4-debuginfo 2.48.3-2.el7_9, webkitgtk4-jsc-devel 2.48.3-2.el7_9
    fixed: vendor fix RHSA-2025:10364
  • Red Hat Enterprise Linux 7 webkitgtk3, libwebkit2gtk
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
7 mo ago

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 62% 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
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

  • Apple iOS and iPadOS
  • Apple Safari
  • Apple macOS
  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
  • CWE-787 Out-of-bounds Write

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.