Hi Nonya!
First, make sure that latest SMP_SMA pf is installed and SMA is upgraded to this latest PF version, then OS version will be reported properly
Current available point fixes for:
https://knowledge.broadcom.com/external/article/249427/cumulative-post-itms-86-ru3-point-fixes.html
https://knowledge.broadcom.com/external/article/366939/cumulative-post-itms-872-point-fixes.html
https://knowledge.broadcom.com/external/article/382575/cumulative-post-itms-873-point-fixes.html
Perform latest PM Import to get latest Patch updates and perform assessment scan:
Best regards,
IP.