Memory Handling Vulnerability in Apple's iOS, iPadOS, macOS, tvOS, visionOS, and watchOS Products
CVE-2026-28903

6.5MEDIUM

Key Information:

Vendor

Apple
Status
Safari
iOS And iPad OS
Mac OS
TV OS
Vendor
CVE Published:
11 May 2026

What is CVE-2026-28903?

A memory handling vulnerability exists within Apple's iOS, iPadOS, macOS, tvOS, visionOS, and watchOS systems. This flaw could allow maliciously crafted web content to trigger unexpected process crashes, potentially compromising system stability. Apple has since improved memory handling to address this issue in various updated versions.

Affected Version(s)

iOS and iPadOS 0 < 18.7.9

iOS and iPadOS 0 < 26.5

macOS 0 < 26.5

References

https://support.apple.com/en-us/127110
https://support.apple.com/en-us/127111
https://support.apple.com/en-us/127115

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.