Command Injection Vulnerability in H3C NX15 Router
CVE-2026-18902

8.6HIGH

Key Information:

Vendor

H3c
Status
Nx15
Vendor
CVE Published:
5 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18902?

A command injection vulnerability exists in the H3C NX15 Router version V100R017. The issue arises from the improper handling of the 'my2P4key' argument in the esps.wan.repeater.set/repeaterproc function located in the /api/esps file. Remote attackers can exploit this vulnerability to execute arbitrary commands on the affected router. The exploit code is publicly available, increasing the urgency for users to patch their devices. The vendor has been informed about this vulnerability.

Affected Version(s)

NX15 V100R017

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-18902 - Proof of Concept

References

https://vuldb.com/vuln/385936
vdb-entrytechnical-description
https://vuldb.com/vuln/385936/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18902
third-party-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

coconut (VulDB User)
VulDB CNA Team
.