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Ios And Ipados CVE-2026-28857

| EUVDEUVD-2026-15129 MEDIUM
Out-of-bounds Read (CWE-125)
2026-03-25 apple GHSA-xc63-96v5-38fr
Apple Information Disclosure Buffer Overflow Ios And Ipados Visionos
6.5
CVSS 3.1 · Vendor: apple
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Severity by source

Vendor (apple) 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 Vendor (apple).

CVSS VectorVendor: apple

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

4
Patch available
Apr 16, 2026 - 05:29 EUVD
26.4
EUVD ID Assigned
Mar 25, 2026 - 01:00 euvd
EUVD-2026-15129
Analysis Generated
Mar 25, 2026 - 01:00 vuln.today
CVE Published
Mar 25, 2026 - 00:31 nvd
MEDIUM 6.5

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, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.

AnalysisAI

This vulnerability affects Apple's Safari browser and related Apple operating systems (iOS, iPadOS, macOS Tahoe, and visionOS) due to improper memory handling when processing maliciously crafted web content. The flaw can lead to unexpected process crashes, resulting in a denial of service condition affecting all users of the impacted Safari versions and OS versions below 26.4. While no CVSS score or EPSS data is currently published, the vulnerability has been patched by Apple, suggesting it was discovered through internal security review or responsible disclosure rather than active exploitation.

Technical ContextAI

The vulnerability resides in the memory management subsystem of Apple's WebKit rendering engine, which powers Safari across all affected Apple platforms (identified via CPE strings: cpe:2.3:a:apple:safari, cpe:2.3:a:apple:ios_and_ipados, cpe:2.3:a:apple:macos, and cpe:2.3:a:apple:visionos). The root cause falls under improper memory handling, a class of defect typically encompassing use-after-free, buffer overflow, or heap corruption conditions triggered during the parsing and rendering of web content. The attack surface is the web content rendering pipeline, which processes HTML, CSS, JavaScript, and media from untrusted sources. No specific CWE identifier has been disclosed, but memory safety issues in browser engines commonly map to CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) or CWE-416 (Use After Free). The fix involved refactoring memory allocation, deallocation, or bounds checking within the affected code path.

RemediationAI

Immediately upgrade to Safari 26.4 on macOS, iOS 26.4 on iPhone/iPad devices, macOS Tahoe 26.4 on Mac computers, and visionOS 26.4 on Apple Vision Pro devices. For enterprise environments, configure Mobile Device Management (MDM) or System Preferences to enforce automatic security updates, ensuring all Apple devices receive patches within 24-48 hours of availability. For users unable to patch immediately, mitigate risk by disabling JavaScript or restricting web browsing to trusted, internal websites, or by using network controls to block access to known malicious domains via DNS filtering or web proxies. Monitor Apple's security advisory pages (https://support.apple.com/en-us/126792, https://support.apple.com/en-us/126794, https://support.apple.com/en-us/126799, https://support.apple.com/en-us/126800) for additional guidance or follow-up patches addressing related issues.

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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-2026-28857 vulnerability details – vuln.today
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