CVE-2026-1791 PUBLISHED

Arbitrary File Upload Vulnerability in Operation and Maintenance Security Gateway

Assigner: Hillstone
Reserved: 03.02.2026 Published: 04.02.2026 Updated: 04.02.2026

Unrestricted Upload of File with Dangerous Type vulnerability in Hillstone Networks Operation and Maintenance Security Gateway on Linux allows Upload a Web Shell to a Web Server.This issue affects Operation and Maintenance Security Gateway: V5.5ST00001B113.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
CVSS Score: 2.7

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	High	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	Hillstone Networks
Product	Operation and Maintenance Security Gateway
Versions	Default: unaffected Version V5.5ST00001B113 is affected

References

https://www.hillstonenet.com.cn/security-notification/2025/12/08/wgscld/

Problem Types

CWE-434 Unrestricted Upload of File with Dangerous Type CWE

Impacts

CAPEC-650 Upload a Web Shell to a Web Server