CVE-2021-30952: Apple Multiple Products Integer Overflow or Wraparound Vulnerability

Added to the CISA Known Exploited Vulnerabilities catalog on 05 Mar 2026. Vendor: Apple. Product: Multiple Products.

Apple tvOS, macOS, Safari, iPadOS and watchOS contain an integer overflow or wraparound vulnerability due to the processing of maliciously crafted web content that may lead to arbitrary code execution.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. (due 26 Mar 2026)