CVE-2026-18587 Wavlink WL-NU516U1 Config Import os command injection
Remote attackers can execute arbitrary OS commands via the Password argument in the Config Import feature of Wavlink WL-NU516U1 routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-18587?
CVE-2026-18587 is a high-severity command injection vulnerability in Wavlink WL-NU516U1, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A flaw has been found in Wavlink WL-NU516U1 708c073-mt7628. The impacted element is an unknown function of the component Config Import. Executing a manipulation of the argument Password can lead to os command injection. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is regarded as difficult. The exploit has been published and may be used. It is advisable to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Which versions are affected by CVE-2026-18587?
How do I fix CVE-2026-18587?
No fix has been published for CVE-2026-18587 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-2026-18587 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18587 exists.
Sources
Also known as GHSA-g32f-8qr6-x525.