Skip to main content

Apple Safari CVE-2026-43705

| EUVDEUVD-2026-40197 HIGH
Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)
2026-06-29 apple GHSA-pxxj-mgr3-jp7c
Buffer Overflow Memory Corruption Apple Ios And Ipados
8.8
CVSS 3.1 · Vendor: apple
Share

Severity by source

Vendor (apple) PRIMARY
8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vuln.today AI
8.8 HIGH

Web-delivered so AV:N/AC:L/PR:N, but the victim must open malicious content so UI:R; renderer memory corruption yields high C/I/A within an unchanged scope.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE
HIGH
qualitative
Red Hat
8.8 HIGH
qualitative

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Jun 29, 2026 - 22:31 vuln.today
CVSS changed
Jun 29, 2026 - 22:22 NVD
8.8 (HIGH)
Patch available
Jun 29, 2026 - 22:02 EUVD
CVE Published
Jun 29, 2026 - 19:42 cve.org
UNKNOWN (no severity yet)
CVE Published
Jun 29, 2026 - 19:42 cve.org
HIGH 8.8

DescriptionCVE.org

A type confusion issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to memory corruption.

AnalysisAI

Memory corruption via type confusion in Apple's WebKit browser engine allows attackers to corrupt memory by luring a victim to maliciously crafted web content, affecting Safari, iOS/iPadOS, and macOS before version 26.5.2. The flaw (CWE-843) is network-reachable but requires user interaction (visiting a page), and no public exploit has been identified at time of analysis. Apple has shipped patches across Safari 26.5.2, iOS/iPadOS 26.5.2, and macOS Tahoe 26.5.2.

Technical ContextAI

The vulnerability resides in WebKit, the browser engine underpinning Safari and all web-content rendering on Apple platforms (iOS/iPadOS WebViews, mail previews, and any app embedding WKWebView). The root cause is CWE-843 (Type Confusion): code accesses a resource using an incompatible type, typically when a JavaScript engine or DOM object is interpreted as a different object type than was actually allocated, causing the runtime to treat fields/pointers incorrectly. This class of bug in JIT-compiled JavaScript or DOM handling reliably yields out-of-bounds read/write primitives that escalate to full memory corruption, which is why Apple's advisory frames the impact as 'memory corruption' from 'processing maliciously crafted web content.' The CPE data confirms three affected product lines: cpe:2.3:a:apple:safari, cpe:2.3:a:apple:ios_and_ipados, and cpe:2.3:a:apple:macos.

RemediationAI

Vendor-released patch: update to Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2, which Apple states address the issue with improved type checks; this is the primary and complete fix. Refer to Apple's advisories at https://support.apple.com/en-us/127594, https://support.apple.com/en-us/127595, and https://support.apple.com/en-us/127685 for device-specific update instructions. Because the bug is triggered by rendering web content, interim compensating controls until patching include disabling JavaScript in Safari (Settings/Preferences > Safari/Security), which sharply reduces the attack surface for type-confusion JIT bugs but breaks the vast majority of modern websites, and enabling Lockdown Mode on iOS/iPadOS/macOS, which disables JIT and limits complex web content at a significant usability cost. Restricting users to non-WebKit-dependent workflows is not feasible on iOS since all browsers there use WebKit, so prompt patching is strongly preferred over mitigations.

More in Ios And Ipados

View all
CVE-2026-43723 HIGH POC
7.8 Jul 27

Local privilege escalation in Apple operating systems allows a malicious app to gain root privileges. The vulnerability,
CVE-2026-64771 CRITICAL
9.8 Jul 27

Memory corruption in multiple Apple operating systems allows remote attackers to trigger buffer overflows that may cause
CVE-2026-43803 CRITICAL
9.8 Jul 27

Remote system termination in multiple Apple operating systems (iOS, iPadOS, macOS, tvOS, visionOS, watchOS) can be trigg
CVE-2026-43810 CRITICAL
9.8 Jul 27

Remote memory corruption in the Apple operating-system kernel (shared XNU core across iOS/iPadOS 26.6, macOS Sequoia 15.
CVE-2026-64770 CRITICAL
9.8 Jul 27

Remote code execution in Apple operating systems prior to iOS/iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, ma
CVE-2026-64769 CRITICAL
9.8 Jul 27

Heap-based buffer overflow in Apple iOS, iPadOS, macOS, tvOS, and visionOS allows remote attackers to cause unexpected a
CVE-2026-64774 CRITICAL
9.8 Jul 27

We are tasked to produce a JSON object with specific fields based on a CVE. We must synthesize multiple intelligence sou
CVE-2026-64772 CRITICAL
9.8 Jul 27

Remote code execution in Apple operating systems (iOS, iPadOS, macOS Sequoia, macOS Tahoe, tvOS, visionOS) stems from an
CVE-2026-43807 CRITICAL
9.8 Jul 27

Denial of service via unexpected app termination affects multiple Apple operating systems, including iOS, iPadOS, macOS,
CVE-2026-64733 CRITICAL
9.8 Jul 27

A data protection flaw in multiple Apple operating systems allows a locally-installed app to fingerprint the user. An at
CVE-2026-43799 CRITICAL
9.8 Jul 27

Denial-of-service (unexpected system termination) affects Apple's shared OS platforms - iOS/iPadOS before 26.6, macOS Se
CVE-2026-64700 CRITICAL
9.8 Jul 27

Local denial-of-service in Apple operating systems via a use-after-free vulnerability allows an app to cause unexpected

Same weakness CWE-843 – Access of Resource Using Incompatible Type (Type Confusion)

View all
CVE-2011-0611 HIGH POC
8.8
CVE-2012-0507 CRITICAL POC
9.8
CVE-2017-8291 HIGH POC
7.8
CVE-2016-7201 HIGH POC
8.8
CVE-2017-0037 HIGH POC
8.1
CVE-2019-0752 HIGH POC
7.5
CVE-2017-5070 HIGH POC
8.8
CVE-2025-30397 HIGH POC
7.5

Same technique Buffer Overflow

View all
CVE-2017-7269 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2020-0796 CRITICAL POC
10.0
CVE-2019-11043 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8

Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Liberty Linux 8 Fixed
SUSE Liberty Linux 9 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Affected

Share

CVE-2026-43705 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy