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Tvos CVE-2026-28859

| EUVDEUVD-2026-15133 MEDIUM
Out-of-bounds Read (CWE-125)
2026-03-25 apple
Buffer Overflow Information Disclosure Apple Tvos Visionos Watchos Ios And Ipados
4.3
CVSS 3.1 · Vendor: apple
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Severity by source

Vendor (apple) PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
SUSE
MEDIUM
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
Low
Integrity
None
Availability
None

Lifecycle Timeline

4
Patch available
Apr 16, 2026 - 05:29 EUVD
26.4
EUVD ID Assigned
Mar 25, 2026 - 01:00 euvd
EUVD-2026-15133
Analysis Generated
Mar 25, 2026 - 01:00 vuln.today
CVE Published
Mar 25, 2026 - 00:32 nvd
MEDIUM 4.3

DescriptionCVE.org

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A malicious website may be able to process restricted web content outside the sandbox.

AnalysisAI

A sandbox escape vulnerability in Apple's WebKit browser engine allows malicious websites to process restricted web content outside the security sandbox, potentially enabling unauthorized access to protected system resources. The vulnerability affects Safari and all Apple operating systems including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. Apple has addressed this issue through improved memory handling in Safari 26.4 and corresponding OS updates across all affected platforms.

Technical ContextAI

This vulnerability resides in WebKit's memory management subsystem, which handles the rendering and execution of web content within sandboxed processes. The sandbox is a fundamental security boundary in modern browsers designed to isolate untrusted web content from system resources and other applications. The vulnerability appears to be rooted in improper memory handling (as indicated by the fix description), which could fall under memory corruption issues (CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer or similar memory safety weaknesses). The affected CPE strings indicate the vulnerability impacts Apple's entire ecosystem: Safari (cpe:2.3:a:apple:safari), iOS and iPadOS (cpe:2.3:a:apple:ios_and_ipados), macOS (cpe:2.3:a:apple:macos), tvOS (cpe:2.3:a:apple:tvos), visionOS (cpe:2.3:a:apple:visionos), and watchOS (cpe:2.3:a:apple:watchos), all versions prior to the 26.4 releases.

RemediationAI

Immediately update to Safari 26.4 and the corresponding OS version 26.4 for your device (iOS 26.4, iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, or watchOS 26.4). Consult Apple's official security advisories at https://support.apple.com/en-us/126792 (and related URLs 126794, 126797, 126798, 126799, 126800) for OS-specific update instructions. Until patches can be deployed, minimize exposure to untrusted websites and consider restricting web browsing to pre-approved, trusted domains. Enable additional security features such as Content Security Policy (CSP) headers on internal websites and consider using network-level filtering to block known malicious domains.

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Same weakness CWE-125 – Out-of-bounds Read

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
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
SUSE Linux Enterprise Module for Basesystem 15 SP7 Fixed
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Fixed
SUSE Linux Enterprise Module for Development Tools 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP6-LTSS Fixed

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CVE-2026-28859 vulnerability details – vuln.today
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