Apple · Multiple Products
CVE-2021-1789
Apple Multiple Products Type Confusion Vulnerability
Qué es
A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.
CISA: A type confusion issue affecting multiple Apple products allows processing of maliciously crafted web content, leading to arbitrary code execution.
Qué hacer
Apply updates per vendor instructions.
Plazo para las agencias federales de EE. UU.: 25 de mayo de 2022
- Añadida a la lista de CISA
- 4 de mayo de 2022
- Publicada
- 2 de abril de 2021
- Gravedad
- Alto 8,8 CVSS 3.1
- Probabilidad de ataques en los próximos 30 días (EPSS)
- 14% entre el 3,5% superior de todas las vulnerabilidades conocidas
- Debilidad
- CWE-843
- Más detalles
- NVD · CVE.org · CISA
Todas las referencias (8)
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7…
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO5…
- https://security.gentoo.org/glsa/202104-03
- https://support.apple.com/en-us/HT212147
- https://support.apple.com/en-us/HT212146
- https://support.apple.com/en-us/HT212148
- https://support.apple.com/en-us/HT212149
- https://support.apple.com/en-us/HT212152
Más fallos explotados de Apple
| Añadido | Vulnerabilidad | Producto | Gravedad | Prob. de ataque |
|---|---|---|---|---|
| 29 sept 2026 | Out-of-Bounds Write | Multiple Products | Alto 8,8 | 26% |
| 20 mar 2026 | Buffer Overflow | Multiple Products | Alto 8,8 | 1,7% |
| 20 mar 2026 | Improper Locking | Multiple Products | Alto 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 | Alto 8,8 | 7,0% |
| 5 mar 2026 | Use-After-Free | Multiple Products | Alto 8,8 | 4,0% |
| 12 feb 2026 | Multiple Buffer Overflow | Multiple Products | Alto 7,8 | 1,7% |
| 15 dic 2025 | Use-After-Free WebKit | Multiple Products | Alto 8,8 | 26% |
Fuentes: Known Exploited Vulnerabilities (CISA, dominio público), CVE records (cve.org) y EPSS (FIRST). La probabilidad de ataque es la estimación EPSS de que alguien intente explotar el fallo en los próximos 30 días.