CVE-2026-48695: n/a
FastNetMon Community Edition up to version 1.2.9 contains an OS command injection vulnerability in its MikroTik router integration plugin. The vulnerability arises because the _log() function directly concatenates unsanitized input into an exec() shell command, allowing an attacker who can influence command-line arguments to execute arbitrary shell commands. This vulnerability has a high severity with a CVSS score of 8.1. No official patch or remediation guidance is currently provided by the vendor. The recommended fix is to avoid using exec() with unsanitized input and instead use safer alternatives like file_put_contents() or escapeshellarg().
AI Analysis
Technical Summary
CVE-2026-48695 is an OS command injection vulnerability in FastNetMon Community Edition (up to 1.2.9) within the MikroTik router integration plugin. The _log() function in fastnetmon_mikrotik.php constructs shell commands by concatenating the $msg parameter directly into exec() calls without sanitization. Since $msg contains attacker-controlled data from command-line arguments, this allows injection of arbitrary shell commands. The vulnerability is similar in pattern to a known Juniper plugin issue. No official patch or remediation level is currently documented.
Potential Impact
Successful exploitation allows an attacker with the ability to influence command-line arguments to execute arbitrary shell commands on the host running FastNetMon. This can lead to full compromise of the affected system's integrity and confidentiality. The CVSS score of 8.1 reflects high impact on confidentiality and integrity, with no impact on availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid running vulnerable versions or apply manual code changes to replace the vulnerable exec() calls with safer functions such as file_put_contents() or escapeshellarg() to sanitize inputs. No vendor advisory or official patch links are currently available.
CVE-2026-48695: n/a
Description
FastNetMon Community Edition up to version 1.2.9 contains an OS command injection vulnerability in its MikroTik router integration plugin. The vulnerability arises because the _log() function directly concatenates unsanitized input into an exec() shell command, allowing an attacker who can influence command-line arguments to execute arbitrary shell commands. This vulnerability has a high severity with a CVSS score of 8.1. No official patch or remediation guidance is currently provided by the vendor. The recommended fix is to avoid using exec() with unsanitized input and instead use safer alternatives like file_put_contents() or escapeshellarg().
CVSS v3.1
Score 8.1high
Affected software
pkg:github/pavel-odintsov/fastnetmonRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-48695 is an OS command injection vulnerability in FastNetMon Community Edition (up to 1.2.9) within the MikroTik router integration plugin. The _log() function in fastnetmon_mikrotik.php constructs shell commands by concatenating the $msg parameter directly into exec() calls without sanitization. Since $msg contains attacker-controlled data from command-line arguments, this allows injection of arbitrary shell commands. The vulnerability is similar in pattern to a known Juniper plugin issue. No official patch or remediation level is currently documented.
Potential Impact
Successful exploitation allows an attacker with the ability to influence command-line arguments to execute arbitrary shell commands on the host running FastNetMon. This can lead to full compromise of the affected system's integrity and confidentiality. The CVSS score of 8.1 reflects high impact on confidentiality and integrity, with no impact on availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid running vulnerable versions or apply manual code changes to replace the vulnerable exec() calls with safer functions such as file_put_contents() or escapeshellarg() to sanitize inputs. No vendor advisory or official patch links are currently available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-05-22T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a15e03a891d628fdc67d93e
Added to database: 05/26/2026, 18:02:34 UTC
Last enriched: 06/02/2026, 21:30:33 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 53
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