CVE-2026-76862 Netcore NR255-V 1.5.130703 OS Command Argument Injection in Nettools tcpdump Launch Paths
Attackers can inject arguments into tcpdump launch paths on Netcore NR255-V routers to execute arbitrary system commands.
- 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-2026-76862?
CVE-2026-76862 is a high-severity command injection vulnerability in Netcore NR255-V, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Netcore NR255-V version 1.5.130703 contains an os command argument injection vulnerability in the Nettools tcpdump launch paths, including ntools_start_set_cgi, ntools_tcpdump_start_set_cgi, exe_default, and ntools_proc components. Attackers can inject crafted arguments into these tcpdump launch routines to manipulate executed system commands on the device.
Weakness: CWE-88
Which versions are affected by CVE-2026-76862?
How do I fix CVE-2026-76862?
No fix has been published for CVE-2026-76862 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-2026-76862 being exploited?
There is no known exploitation of CVE-2026-76862 in the wild and no public exploit code.
Sources
Also known as GHSA-w53v-q6c8-r55c.