What is CVE-2026-18902?

CVE-2026-18902 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 2026-08-05.

How severe is CVE-2026-18902?

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

RCE in H3c Nx15

CVE-2026-18902

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.

EPSS: 0.024 (83.1th percentile) — read the EPSS interpretation.

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 (related)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-18902?: CVE-2026-18902 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 2026-08-05.
How severe is CVE-2026-18902?: High severity. CVSS v3 base score is 7.2 out of 10.