CVE-2023-27961: Apple iPadOS

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Multiple validation issues were addressed with improved input sanitization. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4, watchOS 9.4, macOS Big Sur 11.7.5. Importing a maliciously crafted calendar invitation may exfiltrate user information.

Affected products

• Apple iPadOS: before 15.7.4 (fixed in 15.7.4); from 16.0, before 16.4 (fixed in 16.4)
• Apple iPhone OS: before 15.7.4 (fixed in 15.7.4); from 16.0, before 16.4 (fixed in 16.4)
• Apple macOS: from 11.0, before 11.7.5 (fixed in 11.7.5); from 12.0, before 12.6.4 (fixed in 12.6.4); from 13.0, before 13.3 (fixed in 13.3)
• Apple watchOS: before 9.4 (fixed in 9.4)

Published 2023-05-08. Last modified 2026-06-17.