What’s Vulnerable › Vulnerabilities

CVE-2026-1791: Arbitrary File Upload Vulnerability in Operation and Maintenance Security Gateway

• Severity: low (CVSS 2.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-04 · updated 2026-06-17
• Weakness: CWE-434

Description

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.

Affected products

• Hillstone Networks Operation and Maintenance Security Gateway: V5.5ST00001B113

References

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

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