CVE-2020-27938

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-04-02 · updated 2026-06-17
Weakness: CWE-269

Description

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. A malicious application may be able to elevate privileges.

Affected products

macOS: before 11.2.0; before 11.1.0 — fixed in 11.1.0, 11.2.0

How to fix

Upgrade to a fixed version: macOS 11.1.0, 11.2.0. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/HT212011
https://support.apple.com/en-us/HT212147
https://support.apple.com/en-us/HT212011
https://support.apple.com/en-us/HT212147

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