CVE-2025-43265
published 2025-07-30CVE-2025-43265: An out-of-bounds read was addressed with improved input validation. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS…
PriorityP418medium4CVSS 3.1
AVLACLPRNUINSUCLINAN
EPSS
0.30%
22.3th percentile
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may disclose internal states of the app.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_18.6_and_ipados | — | — |
| apple | ios_and_ipados | < 18.6 | 18.6 |
| apple | ipados | < 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
nvdv3.14.0MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
osv4.0MEDIUM
vendor_debian4.0MEDIUM
vendor_redhat4.0MEDIUM
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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 maliciously crafted web content may disclose internal states of the app
vendor_redhat·2025-08-01·CVSS 4.0
CVE-2025-43265 [MEDIUM] CWE-125 webkitgtk: Processing maliciously crafted web content may disclose internal states of the app
webkitgtk: Processing maliciously crafted web content may disclose internal states of the app
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may disclose internal states of the app.
A flaw was found in WebKitGTK. Processing malicious web content can trigger an out-of-bounds read due to improper input validation, resulting in the disclosure of the internal states of the application.
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 f
Apple
CVE-2025-43265: Safari 18.6
vendor_apple·2025-07-30·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265: Safari 18.6
Apple Security Update: About the security content of Safari 18.6
Product: Safari
Version: 18.6
CVE: CVE-2025-43265
Component: WebKit
Impact: Processing maliciously crafted web content may disclose internal states of the app
Description: An out-of-bounds read was addressed with improved input validation.
Apple
CVE-2025-43265: tvOS 18.6
vendor_apple·2025-07-29·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265: tvOS 18.6
Apple Security Update: About the security content of tvOS 18.6
Product: tvOS
Version: 18.6
CVE: CVE-2025-43265
Component: WebKit
Impact: Processing maliciously crafted web content may disclose internal states of the app
Description: An out-of-bounds read was addressed with improved input validation.
Apple
CVE-2025-43265: iOS 18.6 and iPadOS 18.6
vendor_apple·2025-07-29·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265: 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-2025-43265
Component: WebKit
Impact: Processing maliciously crafted web content may disclose internal states of the app
Description: An out-of-bounds read was addressed with improved input validation.
Apple
CVE-2025-43265: visionOS 2.6
vendor_apple·2025-07-29·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265: visionOS 2.6
Apple Security Update: About the security content of visionOS 2.6
Product: visionOS
Version: 2.6
CVE: CVE-2025-43265
Component: WebKit
Impact: Processing maliciously crafted web content may disclose internal states of the app
Description: An out-of-bounds read was addressed with improved input validation.
Apple
CVE-2025-43265: watchOS 11.6
vendor_apple·2025-07-29·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265: watchOS 11.6
Apple Security Update: About the security content of watchOS 11.6
Product: watchOS
Version: 11.6
CVE: CVE-2025-43265
Component: WebKit
Impact: Processing maliciously crafted web content may disclose internal states of the app
Description: An out-of-bounds read was addressed with improved input validation.
Apple
CVE-2025-43265: macOS Sequoia 15.6
vendor_apple·2025-07-29·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265: macOS Sequoia 15.6
Apple Security Update: About the security content of macOS Sequoia 15.6
Product: macOS Sequoia
Version: 15.6
CVE: CVE-2025-43265
Component: WebKit
Impact: Processing maliciously crafted web content may disclose internal states of the app
Description: An out-of-bounds read was addressed with improved input validation.
Debian
CVE-2025-43265: webkit2gtk - An out-of-bounds read was addressed with improved input validation. This issue i...
vendor_debian·2025·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265: webkit2gtk - An out-of-bounds read was addressed with improved input validation. This issue i...
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may disclose internal states of the app.
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)
OSV
CVE-2025-43265: An out-of-bounds read was addressed with improved input validation
osv·2025-07-30·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265: An out-of-bounds read was addressed with improved input validation
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Safari 18.6, watchOS 11.6, visionOS 2.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6. Processing maliciously crafted web content may disclose internal states of the app.
GHSA
GHSA-pjx4-c398-w5h4: An out-of-bounds read was addressed with improved input validation
ghsa_unreviewed·2025-07-30
CVE-2025-43265 [MEDIUM] CWE-125 GHSA-pjx4-c398-w5h4: An out-of-bounds read was addressed with improved input validation
An out-of-bounds read was addressed with improved input validation. This issue is fixed in watchOS 11.6, visionOS 2.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6. Processing maliciously crafted web content may disclose internal states of the app.
OSV
CVE-2025-43265: An out-of-bounds read was addressed with improved input validation
osv·2025-07-30·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265: An out-of-bounds read was addressed with improved input validation
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may disclose internal states of the app.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2025-43265 webkit2gtk4.0: Processing maliciously crafted web content may disclose internal states of the app [fedora-all]
bugzilla·2025-08-04·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265 webkit2gtk4.0: Processing maliciously crafted web content may disclose internal states of the app [fedora-all]
CVE-2025-43265 webkit2gtk4.0: Processing maliciously crafted web content may disclose internal states of the app [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.
I
Bugzilla
CVE-2025-43265 webkitgtk: Processing maliciously crafted web content may disclose internal states of the app
bugzilla·2025-08-04·CVSS 4.0
CVE-2025-43265 [MEDIUM] CVE-2025-43265 webkitgtk: Processing maliciously crafted web content may disclose internal states of the app
CVE-2025-43265 webkitgtk: Processing maliciously crafted web content may disclose internal states of the app
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Safari 18.6, watchOS 11.6, visionOS 2.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6. Processing maliciously crafted web content may disclose internal states of the app.
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 Linu
https://support.apple.com/en-us/124147https://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/30http://seclists.org/fulldisclosure/2025/Jul/32http://seclists.org/fulldisclosure/2025/Jul/35http://seclists.org/fulldisclosure/2025/Jul/37http://www.openwall.com/lists/oss-security/2025/08/02/1https://lists.debian.org/debian-lts-announce/2025/08/msg00015.html
2025-07-30
Published