CVE-2026-28944

Published May 11, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, 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.

Analysis

AI-generated

Technical 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 Tahoe, visionOS, and Safari.

Affected Systems

The affected systems include all iOS, iPadOS, macOS, visionOS, and Safari browsers 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.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade all iOS, iPadOS, macOS, visionOS, and Safari browsers 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 13, 2026 at 22:09 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Title Memory Handling Flaw Causing Process Crashes from Malicious Web Content in Apple OS
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. The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, 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
Type Values Removed Values Added
Title Memory Handling Flaw Causing Process Crashes from Malicious Web Content in Apple OS
Type Values Removed Values Added
Title Improper Memory Handling Over Web Content Causing Process Crash in Apple Platforms
Weaknesses CWE-120
CWE-787
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
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'}

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
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
Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
May 13, 2026, 7:58 PM
Reserved
Mar 3, 2026, 4:36 PM
Status
Modified
Published
May 11, 2026, 9:18 PM
Modified
Oct 26, 2026, 6:10 PM