CVE-2026-1791

Arbitrary File Upload Vulnerability in Operation and Maintenance Security Gateway

2.7 Low

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: Low

Exploit likelihood

0.35%Up 0.3 points since Feb 4, 2026

What each source reports

CVE List Score used 2.7

Arbitrary File Upload Vulnerability in Operation and Maintenance Security Gateway

Record: CVE-2026-1791
CVSS 3.1: 2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-434
Updated: 2026-11-02

EUVDEUVD-2026-5355 2.7

Record: EUVD-2026-5355
CVSS 3.1: 2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-w3f6-336f-pxmh 2.7

Unrestricted Upload of File with Dangerous Type vulnerability in Hillstone Networks Operation and...

Record: GHSA-w3f6-336f-pxmh
CVSS 3.1: 2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-434
Updated: 2026-11-02

NVD 2.7

Record: CVE-2026-1791
CVSS 3.1: 2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-434
Updated: 2026-11-02

Affected products

hillstone networks operation and maintenance security gateway

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-1791 is a low vulnerability (CVSS 2.7) in Hillstone Networks Operation And Maintenance Security Gateway, published February 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. No source names a fixed version.