A security vulnerability affects FastNetMon Community Edition versions 1.2.9 and earlier, specifically in its Juniper router integration plugin. The plugin’s logging function builds system commands using unvetted input that hasn't been checked for malicious content, which can be exploited to run unauthorized, arbitrary code on the server where FastNetMon is installed.
If you use this version of FastNetMon with the Juniper integration enabled, an attacker who can send specially crafted input to the plugin could execute malicious commands on your server. While the software’s core
Source: NVD (National Vulnerability Database) — https://nvd.nist.gov/vuln/detail/CVE-2026-48687