Apple · Ios · CVE-2020-9977
**Name of the Vulnerable Software and Affected Versions**
macOS Big Sur version 11.0.1 and earlier
iOS versions prior to 14.0
iPadOS versions prior to 14.0
**Description**
A validation issue existed in the entitlement verification, which was addressed with improved validation of the process entitlement. This issue allowed a malicious application to determine a user's open tabs in Safari.
**Recommendations**
For macOS Big Sur versions prior to 11.0.1, update to version 11.0.1 or later.
For iOS versions prior to 14.0, update to version 14.0 or later.
For iPadOS versions prior to 14.0, update to version 14.0 or later.