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OpenAdvisories
High · 8.8 CVE-2025-61939 EUVD-2026-1172GHSA-868w-86hc-x374

Columbia Weather Systems MicroServer Improper Restriction of Communication Channel to Intended Endpoints

Published Jan 7, 2026 · Updated Jan 7, 2026 · Assigned by icscert

Description

An unused function in MicroServer can start a reverse SSH connection to a vendor registered domain, without mutual authentication. An attacker on the local network with admin access to the web server, and the ability to manipulate DNS responses, can redirect the SSH connection to an attacker controlled device.

Affected products

VendorProductAffectedFixed
Columbia Weather Systems MicroServer < MS_4.1_14142 MS_4.1_14142

Advisories 1

References