RCE in Pavel-odintsov Fastnetmon

CVE-2026-48694

FastNetMon Community Edition through 1.2.9 contains a configuration injection vulnerability in the Juniper router integration plugin. In src/juniper_plugin/fastnetmon_juniper.php, the $IP_ATTACK variable (received from argv[1]) is directly…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.000 (10.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-48694?
CVE-2026-48694 is a high-severity vulnerability in Pavel-odintsov Fastnetmon, classified under Command Injection. CVSS score: 8.1/10. Published 2026-05-26.
How severe is CVE-2026-48694?
High severity. CVSS v3 base score is 8.1 out of 10.