CVE-2026-28857
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk43th percentile - higher than 43% of all known CVEs
Summary
A vulnerability in WebKit may lead to an unexpected process crash when processing maliciously crafted web content. The issue was addressed with improved memory handling. The fix is included in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, and visionOS 26.4.
Risk Assessment
An attacker could exploit this vulnerability to cause an unexpected process crash, potentially leading to a denial of service (DoS) in the browser or applications using WebKit.
Recommendation
Immediately update systems to Safari 26.4, iOS 26.4, iPadOS 26.4, macOS Tahoe 26.4, or visionOS 26.4, depending on the platform in use.
Original NVD description (English source)
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.

