Microsoft Skype through 8.59.0.77 on macOS has the disable-library-validation entitlement, which allows a local process (with the user’s privileges) to obtain unprompted microphone and camera access by loading a crafted library and thereby inheriting Skype Client’s microphone and camera access.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24003
Reference (s):
- https://www.hdwsec.fr/blog/20200608-skype/