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CVE Record
[ HIGH ]CVE-2021-30952

Apple Multiple Products Integer Overflow or Wraparound Vulnerability

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.

cat cve-2021-30952.json
Vendor
Apple
Product
Multiple Products
CVSS
7.8
EPSS (exploit probability)
7.6%
Status
kev
CISA patch-by (BOD 22-01)
Published

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.

Added to CISA’s Known Exploited Vulnerabilities catalog on 2026-03-05. Required action per CISA: 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 date: 2026-03-26.

This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.