CVE-2026-18900

HIGH 7.2

H3C NX15 Backend RPC esps file.exec os command injection

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-78 CWE-77
Vendor	h3c
Product	nx15
Published	Aug 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

H3C / NX15

V100R017

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 coconut (VulDB User) VulDB CNA Team