CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2021-30663
High (8.8) in Apple Multiple Products. In CISA KEV since 2021-11-03. EPSS 3.5% chance of exploitation in the next 30 days.
An integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, Safari 14.1.1, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution.
Severity
- EPSS
- 3.5% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-31)
- CISA KEV
- listed 2021-11-03, due 2021-11-17
- CWE
- CWE-190
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apple:ipados
- apple:iphone_os
- apple:macos
- apple:safari
- apple:tvos