High severity8.8NVD Advisory· Published Dec 8, 2020· Updated Jun 17, 2026

CVE-2020-27906

Description

Multiple integer overflows were addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1. A remote attacker may be able to cause unexpected application termination or heap corruption.

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./macOSv5
Range: unspecified

Patches

Vulnerability mechanics

References

seclists.org/fulldisclosure/2020/Dec/26nvdMailing ListThird Party Advisory
seclists.org/fulldisclosure/2020/Dec/32nvdMailing ListThird Party Advisory
support.apple.com/en-us/HT211931nvdVendor Advisory
support.apple.com/kb/HT212011nvdVendor Advisory

News mentions

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