DEBIAN-CVE-2026-48695

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Source
https://security-tracker.debian.org/tracker/CVE-2026-48695
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48695.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-48695
Upstream
Published
2026-05-26T18:16:52Z
Modified
2026-09-14T17:03:16Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

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

Affected packages

Debian:12 / fastnetmon

Package

Name
fastnetmon
Purl
pkg:deb/debian/fastnetmon?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.4-2
1.2.4-2+deb12u1
1.2.5-1
1.2.5-2~bpo12+1
1.2.5-2
1.2.6-1~bpo12+1
1.2.6-1
1.2.7-1~bpo12+1
1.2.7-1
1.2.8-1~bpo12+1
1.2.8-1
1.2.8+git20250911-1
1.2.8+git20250911-2
1.2.9-1

Ecosystem specific 

{
    "urgency":  "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48695.json"

Debian:13 / fastnetmon

Package

Name
fastnetmon
Purl
pkg:deb/debian/fastnetmon?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.2.9-0+deb13u1

Affected versions

1.*
1.2.8-1
1.2.8+git20250911-1
1.2.8+git20250911-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48695.json"

Debian:14 / fastnetmon

Package

Name
fastnetmon
Purl
pkg:deb/debian/fastnetmon?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.2.9-1

Affected versions

1.*
1.2.8-1
1.2.8+git20250911-1
1.2.8+git20250911-2

Ecosystem specific 

{
    "urgency":  "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48695.json"