CVE-2025-43457
published 2025-11-04CVE-2025-43457: A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS…
PriorityP434medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
0.56%
42.8th percentile
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_26.1_and_ipados | — | — |
| 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 | visionos | < 26.1 | 26.1 |
| apple | visionos | — | — |
| apple | watchos | < 26.1 | 26.1 |
| apple | watchos | — | — |
| debian | webkit2gtk | < webkit2gtk 2.50.6-1~deb12u1 (bookworm) | webkit2gtk 2.50.6-1~deb12u1 (bookworm) |
| debian | wpewebkit | < webkit2gtk 2.50.6-1~deb12u1 (bookworm) | webkit2gtk 2.50.6-1~deb12u1 (bookworm) |
| ubuntu | webkit2gtk | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Ubuntu
WebKitGTK vulnerabilities
vendor_ubuntu·2026-05-06
CVE-2026-20644 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 an unexpected Safari crash
vendor_redhat·2026-03-18·CVSS 6.5
CVE-2025-43457 [MEDIUM] CWE-416 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.
A flaw was found in WebKitGTK. Processing malicious web content can cause a use-after-free issue due to improper memory management and result in an unexpected process crash.
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 an unexpected process crash but the possib
Apple
CVE-2025-43457: iOS 26.1 and iPadOS 26.1
vendor_apple·2025-11-03·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457: 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-2025-43457
Component: WebKit
Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash
Description: A use-after-free issue was addressed with improved memory management.
Apple
CVE-2025-43457: Safari 26.1
vendor_apple·2025-11-03·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457: Safari 26.1
Apple Security Update: About the security content of Safari 26.1
Product: Safari
Version: 26.1
CVE: CVE-2025-43457
Component: WebKit
Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash
Description: A use-after-free issue was addressed with improved memory management.
Apple
CVE-2025-43457: macOS Tahoe 26.1
vendor_apple·2025-11-03·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457: macOS Tahoe 26.1
Apple Security Update: About the security content of macOS Tahoe 26.1
Product: macOS Tahoe
Version: 26.1
CVE: CVE-2025-43457
Component: WebKit
Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash
Description: A use-after-free issue was addressed with improved memory management.
Apple
CVE-2025-43457: visionOS 26.1
vendor_apple·2025-11-03·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457: visionOS 26.1
Apple Security Update: About the security content of visionOS 26.1
Product: visionOS
Version: 26.1
CVE: CVE-2025-43457
Component: WebKit
Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash
Description: A use-after-free issue was addressed with improved memory management.
Apple
CVE-2025-43457: watchOS 26.1
vendor_apple·2025-11-03·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457: watchOS 26.1
Apple Security Update: About the security content of watchOS 26.1
Product: watchOS
Version: 26.1
CVE: CVE-2025-43457
Component: WebKit
Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash
Description: A use-after-free issue was addressed with improved memory management.
Debian
CVE-2025-43457: webkit2gtk - A use-after-free issue was addressed with improved memory management. This issue...
vendor_debian·2025·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457: webkit2gtk - A use-after-free issue was addressed with improved memory management. This issue...
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Scope: local
bookworm: resolved (fixed in 2.50.6-1~deb12u1)
bullseye: open
forky: resolved (fixed in 2.50.6-1)
sid: resolved (fixed in 2.50.6-1)
trixie: resolved (fixed in 2.50.6-1~deb13u1)
GHSA
GHSA-9c63-94gf-85h2: A use-after-free issue was addressed with improved memory management
ghsa_unreviewed·2025-11-04
CVE-2025-43457 [MEDIUM] CWE-416 GHSA-9c63-94gf-85h2: A use-after-free issue was addressed with improved memory management
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 26.1, iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.
OSV
CVE-2025-43457: A use-after-free issue was addressed with improved memory management
osv·2025-11-04·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457: A use-after-free issue was addressed with improved memory management
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.
OSV
CVE-2025-43457: A use-after-free issue was addressed with improved memory management
osv·2025-11-04·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457: A use-after-free issue was addressed with improved memory management
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2025-43457 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash [fedora-all]
bugzilla·2026-03-19·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash [fedora-all]
CVE-2025-43457 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash [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.
Discussion:
FEDORA-2026-431948187d (webkitgtk-2.52.0-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-431948187d
---
FEDORA-2026-6502cee6c2 (webkitgtk-2.52.0-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-6502cee6c2
---
FEDORA-2026-36594550b0 (webkitgtk-2.52.0-1.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fed
Bugzilla
CVE-2025-43457 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
bugzilla·2026-03-18·CVSS 6.5
CVE-2025-43457 [MEDIUM] CVE-2025-43457 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
CVE-2025-43457 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Discussion:
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9
Via RHSA-2026:9692 https://access.redhat.com/errata/RHSA-2026:9692
https://support.apple.com/en-us/125632https://support.apple.com/en-us/125634https://support.apple.com/en-us/125638https://support.apple.com/en-us/125639https://support.apple.com/en-us/125640https://access.redhat.com/errata/RHSA-2026:10702https://access.redhat.com/errata/RHSA-2026:11329https://access.redhat.com/errata/RHSA-2026:11814https://access.redhat.com/errata/RHSA-2026:13845https://access.redhat.com/errata/RHSA-2026:14659https://access.redhat.com/errata/RHSA-2026:16056https://access.redhat.com/errata/RHSA-2026:16695https://access.redhat.com/errata/RHSA-2026:19206https://access.redhat.com/errata/RHSA-2026:19535https://access.redhat.com/errata/RHSA-2026:22136https://access.redhat.com/errata/RHSA-2026:9692https://access.redhat.com/security/cve/CVE-2025-43457https://bugzilla.redhat.com/show_bug.cgi?id=2448786https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-43457.json
2025-11-04
Published