high 7.0

CVE-2025-24209 json

A buffer overflow issue was addressed with improved memory handling.

published 2025-03-31 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-8989

cvss: 7.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, macOS Sequoia 15.4, tvOS 18.4, watchOS 11.4. Processing maliciously crafted web content may lead to an unexpected process crash.

Patch / fix

fixed in 6 distros 6

Apple Safari 18.4
Apple iOS and iPadOS 18.4
Apple iPadOS 17.7.6
Apple macOS 15.4
Apple tvOS 18.4
Apple watchOS 11.4

debian ubuntu red hat suse almalinux rocky linux

wpewebkit Debian 14, Debian 13 2.48.1-1
webkit2gtk Debian 12 2.48.1-2~deb12u1
webkit2gtk Debian 14, Debian 13 2.48.1-1

debian advisories DEBIAN-CVE-2025-24209

webkit2gtk Ubuntu 22.04 LTS 2.48.1-0ubuntu0.22.04.1
webkit2gtk Ubuntu 24.04 LTS 2.48.1-0ubuntu0.24.04.1

ubuntu advisories UBUNTU-CVE-2025-24209

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 2.48.1-1.el9_6
webkit2gtk3-jsc RHEL 9 2.48.1-1.el9_6
webkit2gtk3 RHEL 8 2.48.1-1.el8_10
webkit2gtk3-jsc RHEL 8 2.48.1-1.el8_10
webkit2gtk3 RHEL 9 2.48.1-1.el9_5
webkit2gtk3-jsc RHEL 9 2.48.1-1.el9_5
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-2025:10364 RHSA-2025:8194 RHSA-2025:8065 RHSA-2025:8066 RHSA-2025:8064 RHSA-2025:7387

webkit2gtk3 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.48.1-150400.4.115.2
webkit2gtk4 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.48.1-150400.4.115.2
webkit2gtk3-soup2 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +7 more 2.48.1-150400.4.115.2
webkit2gtk3 SLE Module for Desktop Applications 15 SP6, openSUSE Leap 15.6 2.48.1-150600.12.36.5
webkit2gtk4 SLE Module for Development Tools 15 SP6, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 2.48.1-150600.12.36.5
webkit2gtk3-soup2 SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 2.48.1-150600.12.36.5
webkit2gtk3 SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 2.48.1-150200.142.1
webkit2gtk3 SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2.48.1-4.34.1

suse advisories SUSE-SU-2025:1336-1 SUSE-SU-2025:1331-1 SUSE-SU-2025:1325-1 SUSE-SU-2025:1265-1

webkit2gtk3 AlmaLinux 9 2.48.1-1.el9_6
webkit2gtk3-jsc AlmaLinux 9 2.48.1-1.el9_6
webkit2gtk3 AlmaLinux 8 2.48.1-1.el8_10
webkit2gtk3-jsc AlmaLinux 8 2.48.1-1.el8_10
webkit2gtk3 AlmaLinux 9 2.48.1-1.el9_5
webkit2gtk3-jsc AlmaLinux 9 2.48.1-1.el9_5

almalinux advisories ALSA-2025:7387 ALSA-2025:3974 ALSA-2025:3713

webkit2gtk3 Rocky Linux 9 2.48.1-1.el9_5
webkit2gtk3 Rocky Linux 8 2.48.1-1.el8_10

rocky linux advisories RLSA-2025:3713 RLSA-2025:7387 RLSA-2025:3974

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-2025-24209 updated 2026-11-04 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 webkitgtk3, libwebkit2gtk
affected: workaround, no fix planned “Will not fix”
Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3 2.48.1-1.el8_10, webkit2gtk3-jsc 2.48.1-1.el8_10
fixed: vendor fix RHSA-2025:3974
Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3 2.48.1-1.el9_5, webkit2gtk3 2.48.1-1.el9_6, webkit2gtk3-jsc 2.48.1-1.el9_5, webkit2gtk3-jsc 2.48.1-1.el9_6
fixed: vendor fix RHSA-2025:3713
Red Hat Enterprise Linux AppStream AUS (v. 8.2) webkit2gtk3 2.48.1-2.el8_2, webkit2gtk3-jsc 2.48.1-2.el8_2
fixed: vendor fix RHSA-2025:8194
Red Hat Enterprise Linux AppStream AUS (v.8.4) webkit2gtk3 2.48.1-2.el8_4, webkit2gtk3-jsc 2.48.1-2.el8_4
fixed: vendor fix RHSA-2025:8064
Red Hat Enterprise Linux AppStream AUS (v.8.6) webkit2gtk3 2.48.1-2.el8_6, webkit2gtk3-jsc 2.48.1-2.el8_6
fixed: vendor fix RHSA-2025:8066
Red Hat Enterprise Linux AppStream E4S (v.8.4) webkit2gtk3 2.48.1-2.el8_4, webkit2gtk3-jsc 2.48.1-2.el8_4
fixed: vendor fix RHSA-2025:8064

show 9 more

Red Hat Enterprise Linux AppStream E4S (v.8.6) webkit2gtk3 2.48.1-2.el8_6, webkit2gtk3-jsc 2.48.1-2.el8_6
fixed: vendor fix RHSA-2025:8066
Red Hat Enterprise Linux AppStream E4S (v.9.0) webkit2gtk3 2.48.1-1.el9_0, webkit2gtk3-jsc 2.48.1-1.el9_0
fixed: vendor fix RHSA-2025:8065
Red Hat Enterprise Linux AppStream EUS (v.8.8) webkit2gtk3 2.48.1-1.el8_8, webkit2gtk3-jsc 2.48.1-1.el8_8
fixed: vendor fix RHSA-2025:4445
Red Hat Enterprise Linux AppStream EUS (v.9.2) webkit2gtk3 2.48.1-3.el9_2, webkit2gtk3-jsc 2.48.1-3.el9_2
fixed: vendor fix RHSA-2025:3756
Red Hat Enterprise Linux AppStream EUS (v.9.4) webkit2gtk3 2.48.1-2.el9_4, webkit2gtk3-jsc 2.48.1-2.el9_4
fixed: vendor fix RHSA-2025:3755
Red Hat Enterprise Linux AppStream TUS (v.8.4) webkit2gtk3 2.48.1-2.el8_4, webkit2gtk3-jsc 2.48.1-2.el8_4
fixed: vendor fix RHSA-2025:8064
Red Hat Enterprise Linux AppStream TUS (v.8.6) webkit2gtk3 2.48.1-2.el8_6, webkit2gtk3-jsc 2.48.1-2.el8_6
fixed: vendor fix RHSA-2025:8066
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 OpenShift Dev Spaces 3 devspaces/udi-rhel9 3.20-11, devspaces/udi-base-rhel9 3.20-2, devspaces/pluginregistry-rhel9 3.20-8
fixed: vendor fix RHSA-2025:7998

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: 19 mo ago (2025-04-01)

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
CNA	3.1	7.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

Affected products

Apple Safari
Apple iOS and iPadOS
Apple iPadOS
Apple macOS
Apple tvOS
Apple watchOS

Classification

Weakness

CWE-120 Buffer Copy without Checking Size of Input

References

support.apple.com /en-us/122371
vendor-advisory
support.apple.com /en-us/122372
vendor-advisory
support.apple.com /en-us/122373
vendor-advisory
support.apple.com /en-us/122377
vendor-advisory
support.apple.com /en-us/122379
vendor-advisory
support.apple.com /en-us/122376
lists.debian.org /debian-lts-announce/2025/06/msg00016.html
seclists.org /fulldisclosure/2025/Apr/13
seclists.org /fulldisclosure/2025/Apr/8
seclists.org /fulldisclosure/2025/Apr/5
seclists.org /fulldisclosure/2025/Apr/4
seclists.org /fulldisclosure/2025/Apr/11
seclists.org /fulldisclosure/2025/Apr/2

Sources

CVE List CVE-2025-24209
NVD CVE-2025-24209

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.

Summary