Status: UPDATED
| Advisory ID: CVE-2026-48695
Key Details
| CVE | CVE-2026-48695 |
| CVSS Score / Version | 8.1 (High) / CVSS v3.1 |
| Updated | 2026-07-21 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is none. |
| Affected products | pavel-odintsov fastnetmon |
| Classified as | CWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) |
Affected Products, Subsystems & Sectors
| Subsystems | General OT |
| Sectors | Multiple |
What to Know
FastNetMon Community Edition through 1.2.9 contains an OS command injection vulnerability in the MikroTik router integration plugin. The _log() function in src/mikrotik_plugin/fastnetmon_mikrotik.php (lines 107-108) constructs shell commands by concatenating the $msg parameter directly into exec() calls: exec("echo `date` \"- {FASTNETMON] - " . $msg . " \" >> " . $FILE_LOG_TMP). This is identical in pattern to the Juniper plugin vulnerability. The $msg variable contains unsanitized attack data from command-line arguments. An attacker who can influence argv[] values can inject arbitrary shell commands. The fix is to replace exec() with file_put_contents() or use escapeshellarg(). (NVD)
What to Do
Monitor pavel-odintsov's web page for any future patch releases.
References