An integer overflow was addressed with improved input validation.

published 2024-06-10 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-25026

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits: 0; none known

An integer overflow was addressed with improved input validation. This issue is fixed in Safari 17.5, iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, tvOS 17.5, visionOS 1.2. Processing maliciously crafted web content may lead to arbitrary code execution.

Patch / fix

fixed in 6 distros 4

Apple Safari 17.5
Apple iOS and iPadOS 16.7.8, 17.5
Apple tvOS 17.5
Apple visionOS 1.2
apple iphone_os 16.7, 17.5
apple ipad_os 16.7, 17.5

debian ubuntu red hat suse

wpewebkit Debian 14, Debian 13 2.44.2-1
webkit2gtk Debian 12 2.44.2-1~deb12u1
webkit2gtk Debian 14, Debian 13 2.44.2-1

debian advisories DEBIAN-CVE-2024-27833

webkit2gtk Ubuntu 22.04 LTS 2.44.2-0ubuntu0.22.04.1
webkit2gtk Ubuntu 24.04 LTS 2.44.2-0ubuntu0.24.04.1

ubuntu advisories UBUNTU-CVE-2024-27833

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 2.38.5-1.el9_2.3
webkit2gtk3-jsc RHEL 9 2.38.5-1.el9_2.3
webkit2gtk3 RHEL 8 2.38.5-1.el8_8.5
webkit2gtk3-jsc RHEL 8 2.38.5-1.el8_8.5
webkitgtk4 RHEL 7 ELS 2.48.3-2.el7_9
webkitgtk4-jsc RHEL 7 ELS 2.48.3-2.el7_9
webkit2gtk3 RHEL 8.4 TUS, RHEL 8.4 E4S, RHEL 8.4 AUS 2.46.3-1.el8_4
webkit2gtk3-jsc RHEL 8.4 TUS, RHEL 8.4 E4S, RHEL 8.4 AUS 2.46.3-1.el8_4

red hat advisories RHSA-2025:10364 RHSA-2024:9679 RHSA-2024:9646 RHSA-2024:9638 RHSA-2024:9680 RHSA-2024:9653

webkit2gtk3 SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Module for Desktop Applications 15 SP5 +2 more 2.46.0-150400.4.91.1
webkit2gtk4 SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +1 more 2.46.0-150400.4.91.1
webkit2gtk3-soup2 SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Module for Basesystem 15 SP5 +2 more 2.46.0-150400.4.91.1
webkit2gtk3 SLE Module for Desktop Applications 15 SP6, openSUSE Leap 15.6 2.46.0-150600.12.12.1
webkit2gtk4 SLE Module for Development Tools 15 SP6, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 2.46.0-150600.12.12.1
webkit2gtk3-soup2 SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 2.46.0-150600.12.12.1
webkit2gtk3 SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLES 15 SP2-LTSS +1 more 2.46.0-150200.121.1
webkit2gtk3 SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2.46.0-4.15.1

suse advisories SUSE-SU-2024:3870-1 SUSE-SU-2024:3869-1 SUSE-SU-2024:3752-1 SUSE-SU-2024:3751-1

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-2024-27833 updated 2026-11-07 cvss 8.8

webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution

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 2.38.5-1.el8_8.5, webkit2gtk3-jsc 2.38.5-1.el8_8.5
fixed: vendor fix RHSA-2023:4202
Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3 2.38.5-1.el9_2.3, webkit2gtk3-jsc 2.38.5-1.el9_2.3
fixed: vendor fix RHSA-2023:4201
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

show 7 more

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
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 2.46.3-1.el9_2, webkit2gtk3-jsc 2.46.3-1.el9_2
fixed: vendor fix RHSA-2024:9638
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 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: 2 y ago (2024-06-13)

Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:H/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	7.5	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Apple Safari
Apple iOS and iPadOS
Apple tvOS
Apple visionOS
apple iphone_os
apple ipad_os

Classification

Weakness

CWE-190 Integer Overflow or Wraparound

References

support.apple.com /en-us/HT214101
vendor-advisory
support.apple.com /en-us/HT214100
vendor-advisory
support.apple.com /en-us/HT214108
vendor-advisory
support.apple.com /en-us/HT214103
vendor-advisory
support.apple.com /en-us/HT214102
vendor-advisory
support.apple.com /en-us/120896
support.apple.com /en-us/120898
support.apple.com /en-us/120901
support.apple.com /en-us/120905
support.apple.com /en-us/120906
seclists.org /fulldisclosure/2024/Jun/5
mailing-list, third-party-advisory
support.apple.com /kb/HT214108
support.apple.com /kb/HT214103
support.apple.com /kb/HT214102
support.apple.com /kb/HT214100

Sources

CVE List CVE-2024-27833
NVD CVE-2024-27833

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