What’s Vulnerable › Vulnerabilities
CVE-2020-27936
- Severity: high (CVSS 7.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% 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-125
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.
Affected products
- macOS: before 11.1.0 — fixed in 11.1.0
How to fix
Upgrade to a fixed version: macOS 11.1.0. Check the vendor advisory for mitigations.
References
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