CVE-2026-108929 Netcore NR268 DDNS DDNSset.cgi execvp argument injection
Remote attackers can execute arbitrary commands on Netcore NR268 routers via argument injection in the DDNS Hostname field.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108929?
CVE-2026-108929 is a critical command injection vulnerability in Netcore NR268, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-108929?
How do I fix CVE-2026-108929?
No fix has been published for CVE-2026-108929 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-108929 being exploited?
There is no known exploitation of CVE-2026-108929 in the wild and no public exploit code.
Sources
Also known as GHSA-q83v-h5qh-mxfc.