Apple · Multiple Products
CVE-2021-30663
Apple Multiple Products WebKit Integer Overflow Vulnerability
ما هي
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.
CISA: 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.
ما العمل
Apply updates per vendor instructions.
الموعد النهائي للوكالات الفدرالية الأمريكية: 17 نوفمبر 2021
ثغرات مُستغلّة أخرى من Apple
| أُضيفت | الثغرة | المنتج | الخطورة | احتمال الهجوم |
|---|---|---|---|---|
| 29/09/2026 | Out-of-Bounds Write | Multiple Products | مرتفع 8.8 | 26% |
| 20/03/2026 | Buffer Overflow | Multiple Products | مرتفع 8.8 | 1.7% |
| 20/03/2026 | Improper Locking | Multiple Products | مرتفع 7.8 | 0.4% |
| 20/03/2026 | Classic Buffer Overflow | Multiple Products | متوسطة 5.5 | 0.4% |
| 05/03/2026 | Integer Overflow or Wraparound | Multiple Products | مرتفع 8.8 | 7.0% |
| 05/03/2026 | Use-After-Free | Multiple Products | مرتفع 8.8 | 4.0% |
| 12/02/2026 | Multiple Buffer Overflow | Multiple Products | مرتفع 7.8 | 1.7% |
| 15/12/2025 | Use-After-Free WebKit | Multiple Products | مرتفع 8.8 | 26% |
المصادر: Known Exploited Vulnerabilities (CISA، ملكية عامة)، وCVE records (cve.org)، وEPSS (FIRST). احتمال الهجوم هو تقدير EPSS لاحتمال أن يحاول أحد استغلال الثغرة خلال الأيام الـ30 القادمة.