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AWS controltower documentation change

Service: controltower · 2025-11-22 · Documentation low

File: controltower/latest/userguide/vpc-ct-cidr.md

Summary

Corrected URL formatting in link to firewall setup documentation

Security assessment

Change fixes a broken link but does not modify security recommendations or address vulnerabilities

Diff

diff --git a/controltower/latest/userguide/vpc-ct-cidr.md b/controltower/latest/userguide/vpc-ct-cidr.md
index f77fa0595..67405b6a4 100644
--- a//controltower/latest/userguide/vpc-ct-cidr.md
+++ b//controltower/latest/userguide/vpc-ct-cidr.md
@@ -45 +45 @@ Within each VPC, AWS Control Tower divides your specified CIDR range evenly into
-In summary, by default, subnet communication within the VPC is unrestricted. The best practice for controlling communication among your VPC subnets, if needed, is to set up access control lists with rules that define the permitted traffic flow. Use security groups for control of traffic among specific instances. For more information about setting up security groups and firewalls in AWS Control Tower, see [Walkthrough: Set Up Security Groups in AWS Control Tower With AWS Firewall Manager](https://docs.aws.amazon.com/controltower/latest/userguide/firewall-setup-walkthrough.html).
+In summary, by default, subnet communication within the VPC is unrestricted. The best practice for controlling communication among your VPC subnets, if needed, is to set up access control lists with rules that define the permitted traffic flow. Use security groups for control of traffic among specific instances. For more information about setting up security groups and firewalls in AWS Control Tower, see [Walkthrough: Set Up Security Groups in AWS Control Tower With AWS Firewall Manager](https://docs.aws.amazon.com//controltower/latest/userguide/firewall-setup-walkthrough.html).