Vitogate 300 Vulnerability Alert: Patch Now or Prepare for Cyber Shenanigans!
Attention Vitogate 300 users: if your system version is prior to 3.1.0.1, it might as well be wearing a “Kick Me” sign. With vulnerabilities like improper neutralization of special elements, attackers could hijack intended OS commands. Upgrade now, because nobody wants their server playing games of “Simon Says” with hackers.

Hot Take:
Looks like Viessmann Vitogate 300 has been caught playing a dangerous game of “Simon Says” with hackers, and hackers are winning. It’s like giving your dog a keyboard and hoping it doesn’t accidentally order a hundred squeaky toys from Amazon. If your thermostat starts ordering pizza at 3 AM, you might want to check if you’ve updated your software lately!
Key Points:
– Vitogate 300 versions before 3.1.0.1 are vulnerable to OS Command Injection and Client-Side Security Enforcement issues.
– CVE-2025-9494 and CVE-2025-9495 have been assigned to these vulnerabilities with high severity scores.
– Attackers can modify OS commands or bypass client-server security, causing interactions more awkward than a family dinner.
– The vulnerabilities are not remotely exploitable, but could cause worldwide chaos in commercial facilities.
– Updating to software version 3.1.0.1 or newer and following CISA’s advice can prevent your smart devices from turning into smart-alecks.