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Safari CVE-2025-43216

MEDIUM
Use After Free (CWE-416)
2025-07-30 product-security@apple.com
Apple Safari iOS macOS Use After Free Denial Of Service Ipados Iphone Os Tvos Visionos Watchos Red Hat Suse
6.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SUSE
MEDIUM
qualitative
Red Hat
8.8 HIGH
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Patch released
Apr 06, 2026 - 08:30 nvd
Patch available
Analysis Generated
Apr 02, 2026 - 19:37 vuln.today
CVE Published
Jul 30, 2025 - 00:15 nvd
MEDIUM 6.5

DescriptionCVE.org

A use-after-free issue was addressed with improved memory management. 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 maliciously crafted web content may lead to an unexpected Safari crash.

AnalysisAI

Safari and Apple operating systems contain a use-after-free vulnerability in web content processing that causes unexpected application crashes when users visit maliciously crafted websites. The flaw affects Safari 18.5 and earlier, iOS 18.5 and earlier, iPadOS 18.5 and earlier (also iPadOS 17.7.8 and earlier), macOS Sequoia 15.5 and earlier, tvOS 18.5 and earlier, visionOS 2.5 and earlier, and watchOS 11.5 and earlier. Remote attackers can trigger a denial-of-service condition requiring only user interaction to visit a malicious page, with no elevated privileges required. Apple has released patches for all affected platforms; the EPSS score of 0.10% (28th percentile) indicates low real-world exploitation probability despite the accessibility of the attack vector.

Technical ContextAI

The vulnerability stems from improper memory management in WebKit's web content rendering engine, classified as CWE-416 (use-after-free). When processing specially crafted web content, the engine fails to properly manage object lifecycles, allowing a freed memory region to be dereferenced during subsequent rendering operations. This memory safety issue affects the core web rendering path that processes HTML, CSS, and JavaScript in Safari across all Apple platforms (macOS, iOS, iPadOS, tvOS, visionOS, and watchOS). The use-after-free occurs within the rendering pipeline that handles web page layout and display, making it reachable through standard web browsing without special plugins or extensions.

RemediationAI

Users should immediately update to the patched versions: Safari 18.6 or later, iOS 18.6 or later, iPadOS 18.6 or later (or iPadOS 17.7.9 or later for devices not eligible for iPadOS 18), macOS Sequoia 15.6 or later, tvOS 18.6 or later, visionOS 2.6 or later, and watchOS 11.6 or later. These updates address the use-after-free issue with improved memory management in WebKit. No workaround is available for users unable to immediately patch; the primary mitigation is to avoid visiting untrusted websites until systems are updated. Detailed patch release notes and update instructions are provided in Apple's official security advisories at support.apple.com (references 124147-124155). Enterprise environments should prioritize patch deployment for systems where users browse untrusted content.

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Same weakness CWE-416 – Use After Free

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9.8
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9.8
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8.8
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8.8
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7.8
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9.8
CVE-2015-5122 CRITICAL POC
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Same technique Use After Free

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CVE-2015-5119 CRITICAL POC
9.8
CVE-2014-0322 HIGH POC
8.8
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8.8
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7.8
CVE-2015-0313 CRITICAL POC
9.8
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8.8
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8.1

Vendor StatusVendor

SUSE

Severity: Medium
Product Status
SUSE Enterprise Storage 7.1 Fixed
SUSE Liberty Linux 8 Fixed
SUSE Liberty Linux 9 Fixed
SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise High Performance Computing 15 SP6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6 Fixed
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed

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CVE-2025-43216 vulnerability details – vuln.today
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