What’s Vulnerable › Vulnerabilities
CVE-2020-9855
- Severity: high (CVSS 7.8 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: 2020-06-09 · updated 2026-06-17
- Weakness: CWE-20
Description
A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. This issue is fixed in macOS Catalina 10.15.5. A local attacker may be able to elevate their privileges.
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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