Icloud
CVE-2020-9999
HIGH
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, iTunes for Windows 12.10.9. Processing a maliciously crafted text file may lead to arbitrary code execution.
AnalysisAI
A memory corruption issue was addressed with improved state management. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, iTunes for Windows 12.10.9. Processing a maliciously crafted text file may lead to arbitrary code execution. Affected products include: Apple Icloud, Apple Itunes, Apple Ipados, Apple Iphone Os, Apple Mac Os X.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
A logic issue was addressed with improved restrictions. Rated critical severity (CVSS 9.8), this vulnerability is remote
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
An issue was discovered in certain Apple products. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi
Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today