High severity7.8NVD Advisory· Published Dec 8, 2020· Updated Jun 17, 2026

CVE-2020-9999

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Apple Inc./macOS Big Surllm-fuzzy
Range: <11.0.1
Apple Inc./iTunes for Windowsllm-fuzzy
Range: <12.10.9
Apple Inc./macOSv5
Range: unspecified

Patches

Vulnerability mechanics

References

seclists.org/fulldisclosure/2020/Dec/32nvdMailing ListThird Party Advisory
support.apple.com/en-us/HT211931nvdVendor Advisory
support.apple.com/en-us/HT211952nvdVendor Advisory
support.apple.com/kb/HT211843nvdVendor Advisory
support.apple.com/kb/HT211844nvdVendor Advisory
support.apple.com/kb/HT211850nvdVendor Advisory
support.apple.com/kb/HT211935nvdVendor Advisory

News mentions

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epss	0.007
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