OS Command Injection Vulnerability in Sunhillo SureLine Product
CVE-2026-112351

8.7HIGH

Key Information:

Vendor

Sunhillo Corporation

Status
Sureline
Vendor
CVE Published:
27 October 2026

What is CVE-2026-112351?

Sunhillo SureLine versions prior to 9.1.5 include a vulnerability in the networkDiag.cgi endpoint that enables authenticated remote attackers to execute arbitrary commands as the root user. By exploiting shell metacharacters in the ipAddr or dnsAddr parameters, attackers can bypass the security measures set in previous fixes. This vulnerability can be utilized through URL-encoded newline or ampersand sequences in diagnostic modes such as ping, nslookup, or traceroute, potentially leading to complete system compromise.

Affected Version(s)

SureLine 8.6.0 < 9.1.5

References

https://www.sunhillo.com/product/sureline/
product
https://www.vulncheck.com/advisories/sunhillo-sureline-os...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Bruno Alvarenga
Rafael Salema
Allan Victor
Mateus RomĂŁo
Ewerton Reis
.