Apple · Multiple Products
CVE-2021-30807
Apple Multiple Products Memory Corruption Vulnerability
무엇인가
A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.5.1, iOS 14.7.1 and iPadOS 14.7.1, watchOS 7.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.
CISA: Apple iOS, iPadOS, macOS, and watchOS IOMobileFrameBuffer contain a memory corruption vulnerability which may allow an application to execute code with kernel privileges.
할 일
Apply updates per vendor instructions.
미국 연방 기관 조치 기한: 2021년 11월 17일
Apple의 다른 악용된 결함
| 추가됨 | 취약점 | 제품 | 심각도 | 공격 가능성 |
|---|---|---|---|---|
| 2026. 9. 29. | Out-of-Bounds Write | Multiple Products | 높음 8.8 | 26% |
| 2026. 3. 20. | Buffer Overflow | Multiple Products | 높음 8.8 | 1.7% |
| 2026. 3. 20. | Improper Locking | Multiple Products | 높음 7.8 | 0.4% |
| 2026. 3. 20. | Classic Buffer Overflow | Multiple Products | 보통 5.5 | 0.4% |
| 2026. 3. 5. | Integer Overflow or Wraparound | Multiple Products | 높음 8.8 | 7.0% |
| 2026. 3. 5. | Use-After-Free | Multiple Products | 높음 8.8 | 4.0% |
| 2026. 2. 12. | Multiple Buffer Overflow | Multiple Products | 높음 7.8 | 1.7% |
| 2025. 12. 15. | Use-After-Free WebKit | Multiple Products | 높음 8.8 | 26% |
출처: Known Exploited Vulnerabilities(CISA, 퍼블릭 도메인), CVE records(cve.org), EPSS(FIRST). 공격 가능성은 누군가 향후 30일 안에 이 결함을 악용하려 할 확률에 대한 EPSS 추정치입니다.