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 interpolated into Juniper NETCONF set-configuration commands at lines 69 and 90 without any validation or sanitization. Line 69: $conn->load_set_configuration("set routing-options static route {$IP_ATTACK} community 65535:666 discard"). Line 90: $conn->load_set_configuration("delete routing-options static route {$IP_ATTACK}/32"). An attacker who can control the IP address string can inject additional Juniper CLI configuration commands by embedding newline characters followed by arbitrary set/delete commands. This could modify the router's routing table, firewall filters, user accounts, or any other configuration element accessible via NETCONF. The impact is full router compromise.
References
| Link | Resource |
|---|---|
| https://github.com/pavel-odintsov/fastnetmon | Product |
| https://lorikeetsecurity.com/blog/fastnetmon-cve-2026-48694-juniper-netconf-injection | Third Party Advisory |
Configurations
History
27 May 2026, 15:53
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:pavel-odintsov:fastnetmon:*:*:*:*:community:*:*:* | |
| CWE | CWE-77 | |
| References | () https://github.com/pavel-odintsov/fastnetmon - Product | |
| References | () https://lorikeetsecurity.com/blog/fastnetmon-cve-2026-48694-juniper-netconf-injection - Third Party Advisory | |
| First Time |
Pavel-odintsov
Pavel-odintsov fastnetmon |
26 May 2026, 21:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.1 |
| CWE | CWE-78 |
26 May 2026, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-26 18:16
Updated : 2026-05-27 15:53
NVD link : CVE-2026-48694
Mitre link : CVE-2026-48694
CVE.ORG link : CVE-2026-48694
JSON object : View
Products Affected
pavel-odintsov
- fastnetmon