DEBIAN-CVE-2026-48695
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().
DEBIAN-CVE-2026-48695
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-48695
fastnetmon
Source reference: /affected/0/package/name
- Affected versions
- 1.2.4-2
Source reference:
/affected/0/versions1.2.4-2+deb12u1Source reference:
/affected/0/versions1.2.5-1Source reference:
/affected/0/versions1.2.5-2Source reference:
/affected/0/versions1.2.5-2~bpo12+1Source reference:
/affected/0/versions1.2.6-1Source reference:
/affected/0/versions1.2.6-1~bpo12+1Source reference:
/affected/0/versions1.2.7-1Source reference:
/affected/0/versions1.2.7-1~bpo12+1Source reference:
/affected/0/versions1.2.8+git20250911-1Source reference:
/affected/0/versions1.2.8+git20250911-2Source reference:
/affected/0/versions1.2.8-1Source reference:
/affected/0/versions1.2.8-1~bpo12+1Source reference:
/affected/0/versions1.2.9-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
fastnetmon
Source reference: /affected/1/package/name
- Affected versions
- 1.2.8+git20250911-1
Source reference:
/affected/1/versions1.2.8+git20250911-2Source reference:
/affected/1/versions1.2.8-1Source reference:
/affected/1/versions - Fixed versions
- 1.2.9-0+deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
fastnetmon
Source reference: /affected/2/package/name
- Affected versions
- 1.2.8+git20250911-1
Source reference:
/affected/2/versions1.2.8+git20250911-2Source reference:
/affected/2/versions1.2.8-1Source reference:
/affected/2/versions - Fixed versions
- 1.2.9-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "fastnetmon",
"purl": "pkg:deb/debian/fastnetmon?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.2.4-2",
"1.2.4-2+deb12u1",
"1.2.5-1",
"1.2.5-2",
"1.2.5-2~bpo12+1",
"1.2.6-1",
"1.2.6-1~bpo12+1",
"1.2.7-1",
"1.2.7-1~bpo12+1",
"1.2.8+git20250911-1",
"1.2.8+git20250911-2",
"1.2.8-1",
"1.2.8-1~bpo12+1",
"1.2.9-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48695.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.9-0+deb13u1"
}
]
}
],
"package": {
"name": "fastnetmon",
"purl": "pkg:deb/debian/fastnetmon?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.2.8+git20250911-1",
"1.2.8+git20250911-2",
"1.2.8-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48695.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.9-1"
}
]
}
],
"package": {
"name": "fastnetmon",
"purl": "pkg:deb/debian/fastnetmon?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.2.8+git20250911-1",
"1.2.8+git20250911-2",
"1.2.8-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48695.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57240 · Revision 1
- Added to Heist Feed
- Publisher date