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High severity7.1NVD Advisory· Published Apr 2, 2021· Updated Jun 17, 2026

CVE-2020-27936

CVE-2020-27936

Description

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. A local user may be able to cause unexpected system termination or read kernel memory.

AI Insight

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

Affected products

4
  • Apple Inc./macOS Catalinallm-fuzzy
    Range: Security Update 2020-001
  • Apple Inc./macOS Big Surllm-fuzzy
    Range: 11.1
  • Apple Inc./macOSllm-fuzzy2 versions
    Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave+ 1 more
    • (no CPE)range: Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave
    • (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

1

News mentions

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