CVE-2026-18902 H3C NX15 esps repeaterproc command injection

High 8.6 Published Updated

Remote attackers can execute arbitrary commands on H3C NX15 routers via the repeaterproc API 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-2026-18902?

CVE-2026-18902 is a high-severity command injection vulnerability in H3C NX15, published on 5 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. Affected by this vulnerability is the function esps.wan.repeater.set/repeaterproc of the file /api/esps. Performing a manipulation of the argument my2P4key results in command injection. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-18902?

How do I fix CVE-2026-18902?

No fix has been published for CVE-2026-18902 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-2026-18902 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18902 exists.

Sources

Also known as GHSA-g9v7-27wr-m7r3.

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