What is CVE-2026-18811?

CVE-2026-18811 is a high-severity vulnerability in H3c Nx15, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.2/10. Published 2026-08-04.

How severe is CVE-2026-18811?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in H3c Nx15

CVE-2026-18811

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 attac…

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

H3c Nx15 — versions V100R017

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-18811?: CVE-2026-18811 is a high-severity vulnerability in H3c Nx15, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.2/10. Published 2026-08-04.
How severe is CVE-2026-18811?: High severity. CVSS v3 base score is 7.2 out of 10.