Microsoft Teams for iOS Spoofing Vulnerability

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L) and integrity (I:L) but does not impact availability (A:N)? What does that mean for this vulnerability?
The attacker is only able to modify the sender's name of Teams message (I:L) and through social engineering, attempt to trick the recipient into disclosing information (C:L). The availability of the product cannot be affected (A:N).

How do I get the update for Microsoft Teams for iOS?
Tap the Settings icon
Tap the** iTunes & App Store**
Turn on AUTOMATIC DOWNLOADS for Apps
Tap the** App Store** icon
Scroll down to find Microsoft Teams
Tap the Update button

How do I get the update for Teams for Android?
Tap the Play Store icon on your home screen.
Tap the circular account icon at the top right of the screen.
Tap Manage apps & devices.
Tap Updates available.
Tap the Update button next to the Microsoft Teams app.
Yes: https://play.google.com/store/apps/details?id=com.microsoft.teams

Security updates
7.13.0 — https://apps.apple.com/us/app/microsoft-teams/id1113153706