Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

3 Replies

  • If you request https://202.2.2.2, the CN that you request in the HTTPS request (202.2.2.2) does not match that of the public SSL certificate. The browser will not do a reverse lookup, thus resulting in a certificate errot. As far as the browser is concerned, it has done it's job and got a response from the URL that you requested.

     

    Is there any reason your clients are making the request based on IP address and not an FQDN?

     

    • Michael_Saleem1's avatar
      Michael_Saleem1
      Icon for Cirrus rankCirrus

      As Lee already mentioned this is not possible.

       

      The SSL certificate error in the client’s web browser (subject name mismatch) for 202.2.2.2 will prevent the re-direct from triggering.