Yachtcontrol Webapplication - RCE (CVE-2019-17270)

CVE-2019-17270 is a critical vulnerability in Yachtcontrol webservers that allows unauthenticated attackers to execute operating system commands by leveraging insufficient input validation on a specific application endpoint.

CrowdSec has been tracking this vulnerability and its exploits since 10th of March 2025.

CrowdSec network observations suggest that most exploitation of CVE-2019-17270 involves focused reconnaissance to identify viable targets. Attackers typically tailor their campaigns based on system exposure and configuration. It is unlikely that a given attack is accidental. Data from the CrowdSec community also indicates a gradual decrease in attacks targeting CVE-2019-17270. While still present in the wild, exploitation levels have dropped noticeably week-over-week. This may signal that the vulnerability is becoming less relevant or that defenses are improving fast enough for attackers to lose interest.

Exploitation attempts are centered on requests to URLs containing /pages/systemcall.php.