This issue was addressed with improved entitlements. This issue is fixed in macOS Big Sur 11.0.1. A malicious application may be able to access restricted files.
No PoCs from references.
- https://github.com/ARPSyndicate/cvemon
- https://github.com/Jymit/macos-notes
- https://github.com/Live-Hack-CVE/CVE-2020-10006