Description
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, visionOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash.
Published: 2026-05-11
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

In this vulnerability, an exploitable memory handling flaw in Apple operating systems allows maliciously crafted web content to trigger an unexpected process crash. The flaw has been remedied through enhanced memory handling in all Apple’s major platforms, and the fix has been released in version 26.5 for iOS, iPadOS, macOS, and visionOS.

Affected Systems

The affected systems include all iOS, iPadOS, macOS, and visionOS devices running a version earlier than 26.5.

Risk and Exploitability

The EPSS score of < 1% indicates a very low probability that this vulnerability is actively exploited in the wild, a conclusion inferred from the low EPSS value. Based on the stated CVSS score of 7.5, the flaw carries a moderate‑to‑high severity rating, implying that an attacker who can supply malicious web content to a vulnerable system may be able to cause a denial of service by crashing a process. This inference assumes the resource can be triggered remotely via web content. The vulnerability is not listed in CISA’s KEV catalog, signifying no known widespread exploitation. Organizations serving untrusted web traffic are advised to apply the 26.5 update promptly to eliminate the crash vector.

Generated by OpenCVE AI on May 12, 2026 at 20:58 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade all iOS, iPadOS, macOS, and visionOS devices to version 26.5 or later
  • Block or filter web traffic containing potentially malicious content until the update is applied
  • Monitor system logs for unexplained process restarts and investigate any suspicious patterns to detect exploitation attempts

Generated by OpenCVE AI on May 12, 2026 at 20:58 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 12 May 2026 21:15:00 +0000

Type Values Removed Values Added
Title Memory Handling Flaw Causing Process Crashes from Malicious Web Content in Apple OS

Tue, 12 May 2026 18:00:00 +0000

Type Values Removed Values Added
Title Improper Memory Handling Over Web Content Causing Process Crash in Apple Platforms
Weaknesses CWE-120
CWE-787

Tue, 12 May 2026 17:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple ipados
Apple iphone Os
CPEs cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os

Tue, 12 May 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 11 May 2026 22:15:00 +0000

Type Values Removed Values Added
Title Improper Memory Handling Over Web Content Causing Process Crash in Apple Platforms
First Time appeared Apple
Apple ios And Ipados
Apple macos
Apple visionos
Weaknesses CWE-120
CWE-787
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Apple visionos

Mon, 11 May 2026 20:45:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, visionOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash.
References

Subscriptions

Apple Ios And Ipados Ipados Iphone Os Macos Visionos
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-05-12T14:52:43.866Z

Reserved: 2026-03-03T16:36:03.989Z

Link: CVE-2026-28944

cve-icon Vulnrichment

Updated: 2026-05-12T14:52:25.289Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-11T21:18:55.627

Modified: 2026-05-12T17:25:46.367

Link: CVE-2026-28944

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-12T21:00:13Z

Weaknesses