CVE-2026-18900: H3C NX15 Backend RPC esps file.exec os command injection

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-05 · updated 2026-10-23
Weakness: CWE-77

Description

A weakness has been identified in H3C NX15 V100R017. This impacts the function file.exec of the file /api/esps of the component Backend RPC. This manipulation of the argument File causes os command injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

Affected products

H3C NX15: V100R017

References

https://github.com/coconut652-7/IOT_Vul_Public/blob/main/H3C/NX15R017/file_exec_root_rce/poc/postauth_file_exec_rce.py
https://github.com/coconut652-7/IOT_Vul_Public/blob/main/H3C/NX15R017/file_exec_root_rce/report/postauth_file_exec_rce_report.md
https://vuldb.com/cve/CVE-2026-18900
https://vuldb.com/submit/857814
https://vuldb.com/vuln/385934
https://vuldb.com/vuln/385934/cti

Get alerted when CVE-2026-18900 or the next vulnerability affects your stack