CVE-2026-48695

Published May 26, 2026 CVSS 3.1 · 8.1 High EPSS 1.1% KEV · Not listed
Description
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().

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DSA Debian DSA DSA-6375-1 fastnetmon security update
History
Type Values Removed Values Added
Title MikroTik Plugin OS Command Injection in FastNetMon Community Edition
Type Values Removed Values Added
Title MikroTik Plugin OS Command Injection in FastNetMon Community Edition
Type Values Removed Values Added
CPEs cpe:2.3:a:pavel-odintsov:fastnetmon:*:*:*:*:community:*:*:*
Type Values Removed Values Added
Title FastNetMon Community Edition MikroTik Plugin OS Command Injection
Type Values Removed Values Added
First Time appeared Pavel-odintsov
Pavel-odintsov fastnetmon
Vendors & Products Pavel-odintsov
Pavel-odintsov fastnetmon
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title FastNetMon Community Edition MikroTik Plugin OS Command Injection
Weaknesses CWE-78
Type Values Removed Values Added
Description 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().
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
May 26, 2026, 8:17 PM
Reserved
May 22, 2026, 12:00 AM
Status
Analyzed
Published
May 26, 2026, 6:16 PM
Modified
Jul 21, 2026, 7:10 PM