Apple Multiple Products WebKit Integer Overflow Vulnerability

높음 8.8EXPLOITED (CISA KEV)CVE-2021-30663 · Published 08/09/2021 · updated 17/06/2026

Apple Multiple Products WebKit Integer Overflow Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 03/11/2021. Patch affected systems as an emergency.

요약

CVE-2021-30663은(는) safari (apple)에 영향을 주는 높음 (CVSS 8.8) 취약점입니다.
실제 악용 중: CISA가 03/11/2021에 KEV 목록에 추가했습니다.
향후 30일 내 악용 확률(EPSS): 3.5%, 전체 취약점의 89.2%보다 높음.
조치: 14.1.1 이상으로 업데이트하세요.

Package	Affected versions	Patched versions
safari apple	`< 14.1.1`	`14.1.1`

Description

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.

References

support.apple.com/en-us/HT212335 · Release Notes
support.apple.com/en-us/HT212336 · Release Notes
support.apple.com/en-us/HT212341 · Release Notes
support.apple.com/en-us/HT212532 · Release Notes
support.apple.com/en-us/HT212534 · Release Notes
cisa.gov/known-exploited-vulnerabilities-catalog · Third Party Advisory
CISA KEV · CVE-2021-30663

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요약

CVE-2021-30663은(는) safari (apple)에 영향을 주는 높음 (CVSS 8.8) 취약점입니다.

실제 악용 중: CISA가 03/11/2021에 KEV 목록에 추가했습니다.

향후 30일 내 악용 확률(EPSS): 3.5%, 전체 취약점의 89.2%보다 높음.

조치: 14.1.1 이상으로 업데이트하세요.

Package

Affected versions

Patched versions

safari

apple

< 14.1.1

14.1.1

safari의 다른 취약점

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