CVE-2025-43431
published 2025-11-04CVE-2025-43431: 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…
PriorityP348high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.80%
53.7th percentile
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, watchOS 26.1. Processing maliciously crafted web content may lead to memory corruption.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_18.7.2_and_ipados | — | — |
| apple | ios_26.1_and_ipados | — | — |
| apple | ios_and_ipados | < 18.7.2 | 18.7.2 |
| apple | ios_and_ipados | < 26.1 | 26.1 |
| apple | ipados | < 26.1 | 26.1 |
| apple | iphone_os | < 26.1 | 26.1 |
| apple | macos | < 26.1 | 26.1 |
| apple | macos_tahoe | — | — |
| apple | safari | < 26.1 | 26.1 |
| apple | safari | — | — |
| apple | tvos | < 26.1 | 26.1 |
| apple | tvos | — | — |
| apple | visionos | < 26.1 | 26.1 |
| apple | visionos | — | — |
| apple | watchos | < 26.1 | 26.1 |
| apple | watchos | — | — |
| debian | webkit2gtk | < webkit2gtk 2.50.2-1~deb12u1 (bookworm) | webkit2gtk 2.50.2-1~deb12u1 (bookworm) |
| debian | wpewebkit | < webkit2gtk 2.50.2-1~deb12u1 (bookworm) | webkit2gtk 2.50.2-1~deb12u1 (bookworm) |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
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Ubuntu
WebKitGTK vulnerabilities
vendor_ubuntu·2025-12-08
CVE-2025-43392 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 maliciously crafted web content may lead to memory corruption
vendor_redhat·2025-11-20·CVSS 8.8
CVE-2025-43431 [HIGH] CWE-120 webkitgtk: Processing maliciously crafted web content may lead to memory corruption
webkitgtk: Processing maliciously crafted web content may lead to memory corruption
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, watchOS 26.1. Processing maliciously crafted web content may lead to memory corruption.
A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling.
Statement: To exploit this issue, an attacker needs to trick a user into processing or loading malicious web content. Due to this reason, this flaw has been rated with an important severity.
Additionally, this issue can cause memory corruption and the possibility of remote code execution is not discarded.
M
Apple
CVE-2025-43431: iOS 18.7.2 and iPadOS 18.7.2
vendor_apple·2025-11-05·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: iOS 18.7.2 and iPadOS 18.7.2
Apple Security Update: About the security content of iOS 18.7.2 and iPadOS 18.7.2
Product: iOS 18.7.2 and iPadOS
Version: 18.7.2
CVE: CVE-2025-43431
Component: WebKit
Impact: Processing maliciously crafted web content may lead to memory corruption
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43431: visionOS 26.1
vendor_apple·2025-11-03·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: visionOS 26.1
Apple Security Update: About the security content of visionOS 26.1
Product: visionOS
Version: 26.1
CVE: CVE-2025-43431
Component: WebKit
Impact: Processing maliciously crafted web content may lead to memory corruption
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43431: watchOS 26.1
vendor_apple·2025-11-03·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: watchOS 26.1
Apple Security Update: About the security content of watchOS 26.1
Product: watchOS
Version: 26.1
CVE: CVE-2025-43431
Component: WebKit
Impact: Processing maliciously crafted web content may lead to memory corruption
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43431: Safari 26.1
vendor_apple·2025-11-03·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: Safari 26.1
Apple Security Update: About the security content of Safari 26.1
Product: Safari
Version: 26.1
CVE: CVE-2025-43431
Component: WebKit
Impact: Processing maliciously crafted web content may lead to memory corruption
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43431: iOS 26.1 and iPadOS 26.1
vendor_apple·2025-11-03·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: iOS 26.1 and iPadOS 26.1
Apple Security Update: About the security content of iOS 26.1 and iPadOS 26.1
Product: iOS 26.1 and iPadOS
Version: 26.1
CVE: CVE-2025-43431
Component: WebKit
Impact: Processing maliciously crafted web content may lead to memory corruption
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43431: tvOS 26.1
vendor_apple·2025-11-03·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: tvOS 26.1
Apple Security Update: About the security content of tvOS 26.1
Product: tvOS
Version: 26.1
CVE: CVE-2025-43431
Component: WebKit
Impact: Processing maliciously crafted web content may lead to memory corruption
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43431: macOS Tahoe 26.1
vendor_apple·2025-11-03·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: macOS Tahoe 26.1
Apple Security Update: About the security content of macOS Tahoe 26.1
Product: macOS Tahoe
Version: 26.1
CVE: CVE-2025-43431
Component: WebKit
Impact: Processing maliciously crafted web content may lead to memory corruption
Description: The issue was addressed with improved memory handling.
Debian
CVE-2025-43431: webkit2gtk - The issue was addressed with improved memory handling. This issue is fixed in Sa...
vendor_debian·2025·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: 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 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, watchOS 26.1. Processing maliciously crafted web content may lead to memory corruption.
Scope: local
bookworm: resolved (fixed in 2.50.2-1~deb12u1)
bullseye: resolved (fixed in 2.50.2-1~deb11u1)
forky: resolved (fixed in 2.50.2-1)
sid: resolved (fixed in 2.50.2-1)
trixie: resolved (fixed in 2.50.2-1~deb13u1)
OSV
CVE-2025-43431: The issue was addressed with improved memory handling
osv·2025-11-04·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: The issue was addressed with improved memory handling
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, watchOS 26.1. Processing maliciously crafted web content may lead to memory corruption.
OSV
CVE-2025-43431: The issue was addressed with improved memory handling
osv·2025-11-04·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431: The issue was addressed with improved memory handling
The issue was addressed with improved memory handling. This issue is fixed in tvOS 26.1, watchOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, visionOS 26.1. Processing maliciously crafted web content may lead to memory corruption.
GHSA
GHSA-73f2-rmwh-r8w6: The issue was addressed with improved memory handling
ghsa_unreviewed·2025-11-04
CVE-2025-43431 [HIGH] CWE-119 GHSA-73f2-rmwh-r8w6: The issue was addressed with improved memory handling
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.1, visionOS 26.1, watchOS 26.1, iOS 26.1 and iPadOS 26.1, tvOS 26.1. Processing maliciously crafted web content may lead to memory corruption.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2025-43431 webkit2gtk4.0: Processing maliciously crafted web content may lead to memory corruption [fedora-42]
bugzilla·2025-11-21·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431 webkit2gtk4.0: Processing maliciously crafted web content may lead to memory corruption [fedora-42]
CVE-2025-43431 webkit2gtk4.0: Processing maliciously crafted web content may lead to memory corruption [fedora-42]
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
Bugzilla
CVE-2025-43431 webkitgtk: Processing maliciously crafted web content may lead to memory corruption
bugzilla·2025-11-21·CVSS 8.8
CVE-2025-43431 [HIGH] CVE-2025-43431 webkitgtk: Processing maliciously crafted web content may lead to memory corruption
CVE-2025-43431 webkitgtk: Processing maliciously crafted web content may lead to memory corruption
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2. Processing maliciously crafted web content may lead to memory corruption.
Discussion:
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2025:22789 https://access.redhat.com/errata/RHSA-2025:22789
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9
Via RHSA-2025:22790 https://access.redhat.com/errata/RHSA-2025:22790
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9.6 Extended Update Support
Via RHSA-2025:23110 https://access.redhat.com/errata/RHSA-2025:23110
2025-11-04
Published