fix(compliance): handle ZeroDivision error from Prowler ThreatScore (#9653)

prowler/CHANGELOG.md

@@ -19,15 +19,20 @@ All notable changes to the **Prowler SDK** are documented in this file.
 
 ---
 
+## [5.16.1] (Prowler UNRELEASED)
+
+### Fixed
+- Fix ZeroDivision error from Prowler ThreatScore [(#9653)](https://github.com/prowler-cloud/prowler/pull/9653)
+
+---
+
 ## [5.16.0] (Prowler v5.16.0)
 
 ### Added
-
 - `privilege-escalation` and `ec2-imdsv1` categories for AWS checks [(#9537)](https://github.com/prowler-cloud/prowler/pull/9537)
 - Supported IaC formats and scanner documentation for the IaC provider [(#9553)](https://github.com/prowler-cloud/prowler/pull/9553)
 
 ### Changed
-
 - Update AWS Glue service metadata to new format [(#9258)](https://github.com/prowler-cloud/prowler/pull/9258)
 - Update AWS Kafka service metadata to new format [(#9261)](https://github.com/prowler-cloud/prowler/pull/9261)
 - Update AWS KMS service metadata to new format [(#9263)](https://github.com/prowler-cloud/prowler/pull/9263)

prowler/lib/outputs/compliance/prowler_threatscore/prowler_threatscore.py

@@ -103,8 +103,16 @@ def get_prowler_threatscore_table(
     for pillar in pillars:
         pillar_table["Provider"].append(compliance.Provider)
         pillar_table["Pillar"].append(pillar)
+        if max_score_per_pillar[pillar] == 0:
+            pillar_score = 100.0
+            score_color = Fore.GREEN
+        else:
+            pillar_score = (
+                score_per_pillar[pillar] / max_score_per_pillar[pillar]
+            ) * 100
+            score_color = Fore.RED
         pillar_table["Score"].append(
-            f"{Style.BRIGHT}{Fore.RED}{(score_per_pillar[pillar] / max_score_per_pillar[pillar]) * 100:.2f}%{Style.RESET_ALL}"
+            f"{Style.BRIGHT}{score_color}{pillar_score:.2f}%{Style.RESET_ALL}"
         )
         if pillars[pillar]["FAIL"] > 0:
             pillar_table["Status"].append(
@@ -148,9 +156,12 @@ def get_prowler_threatscore_table(
                 print(
                     f"\nFramework {Fore.YELLOW}{compliance_framework.upper()}{Style.RESET_ALL} Results:"
                 )
-                print(
-                    f"\nGeneric Threat Score: {generic_score / max_generic_score * 100:.2f}%"
-                )
+                # Handle division by zero when all findings are muted
+                if max_generic_score == 0:
+                    generic_threat_score = 100.0
+                else:
+                    generic_threat_score = generic_score / max_generic_score * 100
+                print(f"\nGeneric Threat Score: {generic_threat_score:.2f}%")
                 print(
                     tabulate(
                         pillar_table,