ACTIVELY EXPLOITED

CVE-2023-28204: Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability

Facts
VendorApple
ProductMultiple Products
Actively exploitedYes
Added to CISA KEV22 May 2023
CISA federal deadline12 Jun 2023
Weakness (CWE)CWE-125

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain an out-of-bounds read vulnerability that may disclose sensitive information when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

SOURCES

Other Apple flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.