Apple iOS/OS WebKit Crash via Malicious Web Content CVE-2026-28955
CVE-2026-28955 Published on May 11, 2026
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash.
Vulnerability Analysis
CVE-2026-28955 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2026-28955 has been classified to as a Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2026-28955
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Affected Versions
Apple iOS and iPadOS:- Before 18.7.9 is affected.
- Before 26.5 is affected.
- Before 26.5 is affected.
- Before 26.5 is affected.
- Before 26.5 is affected.
- Before 26.5 is affected.