CVE-2026-7219 Totolink N300RT formIpQoS buffer overflow
Remote attackers can trigger a buffer overflow in the Totolink N300RT router via the formIpQoS interface, potentially leading to code execution or service disruption.
- 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-2026-7219?
CVE-2026-7219 is a high-severity memory corruption vulnerability in Totolink N300RT, published on 28 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw has been found in Totolink N300RT 3.4.0-B20250430. This affects an unknown function of the file /boafrm/formIpQoS. Executing a manipulation of the argument entry_name can lead to buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.
Which versions are affected by CVE-2026-7219?
How do I fix CVE-2026-7219?
No fix has been published for CVE-2026-7219 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-7219 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7219 exists.
Sources
Also known as GHSA-rm9m-8jgv-m8g5.