Novastar CX40 NetFilter Utility netconfig popen command injection

published 2025-03-31 last yr. modified 2026-06-17 4mo ago also EUVD-2025-9058

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits: 0; none known

A vulnerability classified as critical has been found in Novastar CX40 up to 2.44.0. Affected is the function system/popen of the file /usr/nova/bin/netconfig of the component NetFilter Utility. The manipulation leads to command injection. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: last yr. (2025-03-31)

Exploit prediction

0.99% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.1	CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA	3.1	5.5	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	3.0	5.5	CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	5.2	AV:A/AC:L/Au:S/C:P/I:P/A:P
CNA	4.0	5.1	CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

Novastar CX40

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

vuldb.com /?id.302058
vdb-entry, technical-description
vuldb.com /?ctiid.302058
signature, permissions-required
vuldb.com /?submit.524869
third-party-advisory

Sources

CVE List CVE-2025-3008
NVD CVE-2025-3008

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