Command Injection Vulnerability in H3C NX15 Router
CVE-2026-18812

8.6HIGH

Key Information:

Vendor

H3c
Status
Nx15
Vendor
CVE Published:
4 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18812?

A vulnerability has been identified in the H3C NX15 Router, specifically within the esps.ipv6.wan function of the /api/esps file. This flaw allows an attacker to manipulate the workMode argument, which could lead to command injection. The vulnerability can be exploited remotely, increasing the risk of unauthorized access and control over affected systems. It is crucial for users of the H3C NX15 V100R017 to apply necessary patches and security measures to mitigate potential attacks.

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-2026-18812 - Proof of Concept

References

https://vuldb.com/vuln/385811
vdb-entrytechnical-description
https://vuldb.com/vuln/385811/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18812
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
.