CVE-2026-76865 Netcore NR255-V 1.5.130703 NULL Pointer Dereference via Unchecked atoi() in QoS Setter Handlers
An attacker can cause a denial of service on Netcore NR255-V routers by sending crafted input to QoS setter handlers, triggering a null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76865?
CVE-2026-76865 is a medium-severity vulnerability in Netcore NR255-V, published on 15 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Netcore NR255-V version 1.5.130703 contains a null pointer dereference vulnerability in the QoS setter CGI handlers filter_conn_del_cgi.c and gre_prio_set_cgi.c due to unchecked atoi() results. An attacker can trigger the flaw by supplying crafted input to these handlers, causing a denial of service.
Weakness: CWE-476
Which versions are affected by CVE-2026-76865?
How do I fix CVE-2026-76865?
No fix has been published for CVE-2026-76865 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76865 being exploited?
There is no known exploitation of CVE-2026-76865 in the wild and no public exploit code.
Sources
Also known as GHSA-3f5g-mqj3-72gq.