Citrix, VMware, and Atlassian Hit with Critical Flaws — Patch ASAP!

**Executive summary:** Multiple high-severity vulnerabilities affecting widely used enterprise products are disclosed: Citrix NetScaler has two zero-day flaws (one authenticated RCE and one DoS) with observed exploitation; VMware Aria Automation has a critical missing access-control flaw (CVSS 9.9); and Atlassian Confluence has a critical RCE (CVSS 10.0). Affected versions and upgrade guidance are provided, and organizations are advised to patch promptly and avoid exposing management interfaces to the Internet.