CVE-2021-30663
악용 확인 Apple Multiple Products WebKit Integer Overflow Vulnerability
악용 여부
악용 확인
2021-11-03
2021-11-17
CISA 미확인
Apple Multiple Products
심각도 (발행처 발표값)
높음8.8
3.1
NVD (미국 NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
악용 확률 (EPSS)
3.5%
3.49%
88.3%
2026-09-04
한국어 공식 권고
CISA 원문
Apple iOS, iPadOS, macOS, tvOS, and Safari WebKit contain an integer overflow vulnerability that leads to code execution 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.— CISA KEV · shortDescription 원문
Apply updates per vendor instructions.— CISA KEV · requiredAction 원문
취약점 설명 (NVD 원문)
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.
CWE-190 CWE-190
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