CVE-2025-43211
published 2025-07-30CVE-2025-43211: The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, iPadOS 17.7.9, macOS Sequoia 15.6, tvOS…
PriorityP423medium6.2CVSS 3.1
AVLACLPRNUINSUCNINAH
EPSS
0.37%
30.0th percentile
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, iPadOS 17.7.9, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing web content may lead to a denial-of-service.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_18.6_and_ipados | — | — |
| apple | ios_and_ipados | < 18.6 | 18.6 |
| apple | ipados | < 17.7.9 | 17.7.9 |
| apple | ipados | — | — |
| apple | ipados | >= 18.0 < 18.6 | 18.6 |
| apple | iphone_os | < 18.6 | 18.6 |
| apple | macos | < 15.6 | 15.6 |
| apple | macos_sequoia | — | — |
| apple | safari | < 18.6 | 18.6 |
| apple | safari | — | — |
| apple | tvos | < 18.6 | 18.6 |
| apple | tvos | — | — |
| apple | visionos | < 2.6 | 2.6 |
| apple | visionos | — | — |
| apple | watchos | < 11.6 | 11.6 |
| apple | watchos | — | — |
| debian | webkit2gtk | < webkit2gtk 2.48.5-1~deb12u1 (bookworm) | webkit2gtk 2.48.5-1~deb12u1 (bookworm) |
| debian | wpewebkit | < webkit2gtk 2.48.5-1~deb12u1 (bookworm) | webkit2gtk 2.48.5-1~deb12u1 (bookworm) |
CVSS provenance
nvdv3.16.2MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv6.2MEDIUM
vendor_debian6.2MEDIUM
vendor_redhat6.2MEDIUM
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OSV
CVE-2025-43211: The issue was addressed with improved memory handling
osv·2025-07-30·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: The issue was addressed with improved memory handling
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, macOS Sequoia 15.6, iPadOS 17.7.9, iOS 18.6 and iPadOS 18.6, tvOS 18.6, watchOS 11.6, visionOS 2.6. Processing web content may lead to a denial-of-service.
OSV
CVE-2025-43211: The issue was addressed with improved memory handling
osv·2025-07-30·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: The issue was addressed with improved memory handling
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, iPadOS 17.7.9, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing web content may lead to a denial-of-service.
GHSA
GHSA-4qjf-x9px-pc8w: The issue was addressed with improved memory handling
ghsa_unreviewed·2025-07-30
CVE-2025-43211 [MEDIUM] CWE-770 GHSA-4qjf-x9px-pc8w: The issue was addressed with improved memory handling
The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, iPadOS 17.7.9, iOS 18.6 and iPadOS 18.6, tvOS 18.6, watchOS 11.6, visionOS 2.6. Processing web content may lead to a denial-of-service.
Ubuntu
WebKitGTK vulnerabilities
vendor_ubuntu·2025-08-19
CVE-2025-43227 WebKitGTK vulnerabilities
Title: WebKitGTK vulnerabilities
Summary: Several security issues were fixed in WebKitGTK.
Several security issues were discovered in the WebKitGTK Web and JavaScript
engines. If a user were tricked into viewing a malicious website, a remote
attacker could exploit a variety of issues related to web browser security,
including cross-site scripting attacks, denial of service attacks, and
arbitrary code execution.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK, such as Epiphany, to make all the necessary changes.
Red Hat
webkitgtk: Processing web content may lead to a denial-of-service
vendor_redhat·2025-08-01·CVSS 6.2
CVE-2025-43211 [MEDIUM] CWE-770 webkitgtk: Processing web content may lead to a denial-of-service
webkitgtk: Processing web content may lead to a denial-of-service
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, iPadOS 17.7.9, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing web content may lead to a denial-of-service.
A flaw was found in WebKitGTK. Processing malicious web content can cause a denial of service due to improper memory handling.
Statement: To exploit this flaw, an attacker needs to trick a user into processing or loading malicious web content.
Mitigation: Do not process or load untrusted web content with WebKitGTK.
In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server, glade, gnome-boxes, gnome-initial-setup, gnome-online-accounts, gnome
Apple
CVE-2025-43211: Safari 18.6
vendor_apple·2025-07-30·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: Safari 18.6
Apple Security Update: About the security content of Safari 18.6
Product: Safari
Version: 18.6
CVE: CVE-2025-43211
Component: WebKit
Impact: Processing web content may lead to a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43211: watchOS 11.6
vendor_apple·2025-07-29·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: watchOS 11.6
Apple Security Update: About the security content of watchOS 11.6
Product: watchOS
Version: 11.6
CVE: CVE-2025-43211
Component: WebKit
Impact: Processing web content may lead to a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43211: visionOS 2.6
vendor_apple·2025-07-29·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: visionOS 2.6
Apple Security Update: About the security content of visionOS 2.6
Product: visionOS
Version: 2.6
CVE: CVE-2025-43211
Component: WebKit
Impact: Processing web content may lead to a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43211: iOS 18.6 and iPadOS 18.6
vendor_apple·2025-07-29·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: iOS 18.6 and iPadOS 18.6
Apple Security Update: About the security content of iOS 18.6 and iPadOS 18.6
Product: iOS 18.6 and iPadOS
Version: 18.6
CVE: CVE-2025-43211
Component: WebKit
Impact: Processing web content may lead to a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43211: macOS Sequoia 15.6
vendor_apple·2025-07-29·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: macOS Sequoia 15.6
Apple Security Update: About the security content of macOS Sequoia 15.6
Product: macOS Sequoia
Version: 15.6
CVE: CVE-2025-43211
Component: WebKit
Impact: Processing web content may lead to a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43211: iPadOS 17.7.9
vendor_apple·2025-07-29·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: iPadOS 17.7.9
Apple Security Update: About the security content of iPadOS 17.7.9
Product: iPadOS
Version: 17.7.9
CVE: CVE-2025-43211
Component: WebKit
Impact: Processing web content may lead to a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43211: tvOS 18.6
vendor_apple·2025-07-29·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: tvOS 18.6
Apple Security Update: About the security content of tvOS 18.6
Product: tvOS
Version: 18.6
CVE: CVE-2025-43211
Component: WebKit
Impact: Processing web content may lead to a denial-of-service
Description: The issue was addressed with improved memory handling.
Debian
CVE-2025-43211: webkit2gtk - The issue was addressed with improved memory handling. This issue is fixed in Sa...
vendor_debian·2025·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211: webkit2gtk - The issue was addressed with improved memory handling. This issue is fixed in Sa...
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, iPadOS 17.7.9, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing web content may lead to a denial-of-service.
Scope: local
bookworm: resolved (fixed in 2.48.5-1~deb12u1)
bullseye: resolved (fixed in 2.48.5-1~deb11u1)
forky: resolved (fixed in 2.48.5-1)
sid: resolved (fixed in 2.48.5-1)
trixie: resolved (fixed in 2.48.5-1~deb13u1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2025-43211 webkit2gtk4.0: Processing web content may lead to a denial-of-service [fedora-all]
bugzilla·2025-08-04·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211 webkit2gtk4.0: Processing web content may lead to a denial-of-service [fedora-all]
CVE-2025-43211 webkit2gtk4.0: Processing web content may lead to a denial-of-service [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
The following link provides references to all essential vulnerability management information. If something is wrong or missing, please contact a member of PSIRT.
https://spaces.redhat.com/display/PRODSEC/Vulnerability+Management+-+Essential+Documents+for+Engineering+Teams
Discussion:
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to clos
Bugzilla
CVE-2025-43211 webkitgtk: Processing web content may lead to a denial-of-service
bugzilla·2025-08-04·CVSS 6.2
CVE-2025-43211 [MEDIUM] CVE-2025-43211 webkitgtk: Processing web content may lead to a denial-of-service
CVE-2025-43211 webkitgtk: Processing web content may lead to a denial-of-service
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, macOS Sequoia 15.6, iPadOS 17.7.9, iOS 18.6 and iPadOS 18.6, tvOS 18.6, watchOS 11.6, visionOS 2.6. Processing web content may lead to a denial-of-service.
Discussion:
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2025:13780 https://access.redhat.com/errata/RHSA-2025:13780
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9
Via RHSA-2025:13782 https://access.redhat.com/errata/RHSA-2025:13782
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Via RHSA-2025
https://support.apple.com/en-us/124147https://support.apple.com/en-us/124148https://support.apple.com/en-us/124149https://support.apple.com/en-us/124152https://support.apple.com/en-us/124153https://support.apple.com/en-us/124154https://support.apple.com/en-us/124155http://seclists.org/fulldisclosure/2025/Aug/0http://seclists.org/fulldisclosure/2025/Jul/31http://seclists.org/fulldisclosure/2025/Jul/32http://seclists.org/fulldisclosure/2025/Jul/36http://www.openwall.com/lists/oss-security/2025/08/02/1https://lists.debian.org/debian-lts-announce/2025/08/msg00015.html
2025-07-30
Published