What’s Vulnerable › Vulnerabilities
CVE-2020-9779
- 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: 2020-10-22 · updated 2026-06-17
- Weakness: CWE-125
Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A local user may be able to cause unexpected system termination or read kernel memory.
Affected products
- macOS: from 10.13.6 before 10.15.4 — fixed in 10.15.4
How to fix
Upgrade to a fixed version: macOS 10.15.4. Check the vendor advisory for mitigations.
References
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