What’s Vulnerable › Vulnerabilities
CVE-2020-9847
- Severity: high (CVSS 8.6 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: 2020-06-09 · updated 2026-06-17
- Weakness: CWE-125
Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.5. A malicious application may be able to break out of its sandbox.
Affected products
- macOS: before 10.15.5 — fixed in 10.15.5
How to fix
Upgrade to a fixed version: macOS 10.15.5. Check the vendor advisory for mitigations.
References
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