Apple · Multiple Products
CVE-2021-30661
Apple Multiple Products WebKit Storage Use-After-Free Vulnerability
Cos'è
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
CISA: Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit Storage contain a use-after-free 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.
Cosa fare
Apply updates per vendor instructions.
Scadenza per le agenzie federali USA: 17 novembre 2021
Altre falle sfruttate di Apple
| Aggiunto | Vulnerabilità | Prodotto | Gravità | Probabilità di attacco |
|---|---|---|---|---|
| 29 set 2026 | Out-of-Bounds Write | Multiple Products | Alta 8,8 | 26% |
| 20 mar 2026 | Buffer Overflow | Multiple Products | Alta 8,8 | 1,7% |
| 20 mar 2026 | Improper Locking | Multiple Products | Alta 7,8 | 0,4% |
| 20 mar 2026 | Classic Buffer Overflow | Multiple Products | Media 5,5 | 0,4% |
| 5 mar 2026 | Integer Overflow or Wraparound | Multiple Products | Alta 8,8 | 7,0% |
| 5 mar 2026 | Use-After-Free | Multiple Products | Alta 8,8 | 4,0% |
| 12 feb 2026 | Multiple Buffer Overflow | Multiple Products | Alta 7,8 | 1,7% |
| 15 dic 2025 | Use-After-Free WebKit | Multiple Products | Alta 8,8 | 26% |
Fonti: Known Exploited Vulnerabilities (CISA, pubblico dominio), CVE records (cve.org) e EPSS (FIRST). La probabilità di attacco è la stima EPSS che qualcuno provi a sfruttare la falla nei prossimi 30 giorni.