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Safari CVE-2025-43211

MEDIUM
Allocation of Resources Without Limits or Throttling (CWE-770)
2025-07-30 product-security@apple.com
Apple Safari iOS macOS Denial Of Service Memory Corruption Ipados Iphone Os Tvos Visionos Watchos Red Hat Suse
6.2
CVSS 3.1 · NVD
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Severity by source

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

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
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 6.2

DescriptionCVE.org

The issue was addressed with improved memory handling. 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 web content may lead to a denial-of-service.

AnalysisAI

Denial-of-service vulnerability in Apple's WebKit engine affects Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS through improper memory handling during web content processing. Local attackers without authentication can trigger this vulnerability via crafted web content to cause application crashes. Vendor-released patches are available across all affected platforms; EPSS score of 0.02% indicates minimal real-world exploitation likelihood despite the moderate CVSS 6.2 rating.

Technical ContextAI

This vulnerability resides in Apple's WebKit rendering engine, which processes HTML, CSS, and JavaScript content across all Apple platforms. The root cause is classified as CWE-770 (Allocation of Resources Without Limits or Throttling), indicating that memory allocation is insufficiently constrained during web content rendering. An attacker can craft malicious web content that triggers excessive or uncontrolled memory allocation, leading to resource exhaustion and denial-of-service. The local attack vector (AV:L) and low complexity (AC:L) indicate the vulnerability requires local access or interaction with local web content, rather than remote network exploitation.

RemediationAI

Vendor-released patches are available: update Safari to version 18.6 or later, update iOS to 18.6 or later, update iPadOS to 18.6 or later (or 17.7.9 for devices not eligible for version 18), update macOS Sequoia to 15.6 or later, update tvOS to 18.6 or later, update visionOS to 2.6 or later, and update watchOS to 11.6 or later. Given that this is a local memory handling issue affecting web content rendering, no workarounds are available other than avoiding untrusted web content. All remediation steps and advisory links are available from Apple's official support pages referenced above.

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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-2025-43211 vulnerability details – vuln.today
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