Netcore NR268 DDNS DDNSset.cgi execvp argument injection

published 2026-10-12 28d ago modified 2026-10-16 24d ago also EUVD-2026-97909

cvss: 9.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits: 0; none known

A flaw has been found in Netcore NR268 1.7.121109. The affected element is the function execvp of the file /router/DDNSset.cgi of the component DDNS. Executing a manipulation of the argument Hostname can lead to argument injection. The attack can be launched remotely.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 24d ago (2026-10-16)

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	4.0	9.4	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X
CNA	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:X/RL:X/RC:R
CNA	3.0	9.9	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:X/RL:X/RC:R
CNA	2.0	9.0	AV:N/AC:L/Au:S/C:C/I:C/A:C/E:ND/RL:ND/RC:UR
CNA	4.0	9.4	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
CNA	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA	2.0	9.0	AV:N/AC:L/Au:S/C:C/I:C/A:C

Affected products

Netcore NR268

Classification

Weakness

CWE-88 Improper Neutralization of Argument Delimiters in a Command
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

vuldb.com /vuln/416753
vdb-entry, technical-description
vuldb.com /vuln/416753/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-108929
third-party-advisory
vuldb.com /submit/977178
third-party-advisory
github.com /draw-ctf/report/blob/main/NR268/2026.09.14-netcore-nr268-ddns-argument-injection.md
related

Sources

CVE List CVE-2026-108929
NVD CVE-2026-108929

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