CVE-2026-18811 H3C NX15 esps add command injection
Remote attackers can execute arbitrary commands on H3C NX15 devices via the esps.filter.url parameter in the /api/esps endpoint.
- 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-2026-18811?
CVE-2026-18811 is a high-severity command injection vulnerability in H3C NX15, published on 4 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability was detected in H3C NX15 V100R017. The affected element is the function Add of the file /api/esps. Performing a manipulation of the argument esps.filter.url results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.
Which versions are affected by CVE-2026-18811?
How do I fix CVE-2026-18811?
No fix has been published for CVE-2026-18811 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-2026-18811 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18811 exists.
Sources
Also known as GHSA-rqmq-f79h-845j.