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Fencer Vulns
high 8.8

CVE-2025-43441 json

The issue was addressed with improved memory handling.

published 2025-11-04 12 mo ago modified 2026-08-14 2 mo ago also EUVD-2025-37670

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 61%
public exploits
0
none known

Summary

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash.

Patch / fix

  • Apple Safari 26.1
  • Apple iOS and iPadOS 18.7.2, 26.1
  • Apple macOS 26.1
  • Apple tvOS 26.1
  • Apple visionOS 26.1
  • Red Hat Red Hat Enterprise Linux 8 0:2.50.3-1.el8_10
  • Red Hat Red Hat Enterprise Linux 9 0:2.50.3-1.el9_7
  • wpewebkit Debian 14 2.50.2-1
  • webkit2gtk Debian 12 2.50.2-1~deb12u1
  • webkit2gtk Debian 13 2.50.2-1~deb13u1
  • webkit2gtk Debian 14 2.50.2-1

debian advisories DEBIAN-CVE-2025-43441

  • webkit2gtk Ubuntu 22.04 LTS 2.50.2-0ubuntu0.22.04.2
  • webkit2gtk Ubuntu 24.04 LTS 2.50.2-0ubuntu0.24.04.2
  • webkit2gtk Ubuntu 25.10 2.50.2-0ubuntu0.25.10.2

ubuntu advisories UBUNTU-CVE-2025-43441

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 9 2.50.3-1.el9_7
  • webkit2gtk3-jsc RHEL 9 2.50.3-1.el9_7
  • webkit2gtk3 RHEL 8 2.50.3-1.el8_10
  • webkit2gtk3-jsc RHEL 8 2.50.3-1.el8_10
  • webkit2gtk3 RHEL 8.6 TUS, RHEL 8.6 E4S, RHEL 8.6 AUS 2.50.3-2.el8_6
  • webkit2gtk3-jsc RHEL 8.6 TUS, RHEL 8.6 E4S, RHEL 8.6 AUS 2.50.3-2.el8_6
  • webkit2gtk3 RHEL 8.8 TUS, RHEL 8.8 E4S 2.50.3-2.el8_8
  • webkit2gtk3-jsc RHEL 8.8 TUS, RHEL 8.8 E4S 2.50.3-2.el8_8

red hat advisories RHSA-2025:23743RHSA-2025:23742RHSA-2025:23583RHSA-2025:23591RHSA-2025:23452RHSA-2025:23451

  • 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 2.50.3-1.el8_10
  • webkit2gtk3-jsc AlmaLinux 8 2.50.3-1.el8_10

almalinux advisories ALSA-2025:22789

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-2025-43441 updated cvss 8.8

webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash

  • Red Hat Enterprise Linux 6 webkitgtk
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 webkitgtk4, webkitgtk4-jsc, webkitgtk4-plugin-process-gtk2
    affected: workaround, no fix available
  • Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3 2.50.3-1.el8_10, webkit2gtk3-jsc 2.50.3-1.el8_10
    fixed: vendor fix RHSA-2025:22789
  • Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3 2.50.3-1.el9_7, webkit2gtk3-jsc 2.50.3-1.el9_7
    fixed: vendor fix RHSA-2025:22790
  • 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
partial
Assessed
12 mo ago

Exploit prediction

0.96% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
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 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
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 Safari
  • Apple iOS and iPadOS
  • Apple macOS
  • Apple tvOS
  • Apple visionOS
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-120 Buffer Copy without Checking Size of Input

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.