CVE-2025-61939
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-07

Last updated on: 2026-01-22

Assigner: ICS-CERT

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.
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Meta Information
Published
2026-01-07
Last Modified
2026-01-22
Generated
2026-06-16
AI Q&A
2026-01-07
EPSS Evaluated
2026-06-15
NVD
CVE-2025-61939
EUVD
EUVD-2026-1172
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
columbiaweather weather_microserver_firmware to MS_4.1_14142 (exc)
columbiaweather weather_microserver *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-923 The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.
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Executive Summary

This vulnerability involves an unused function in MicroServer that can initiate a reverse SSH connection to a vendor-registered domain without mutual authentication. An attacker who has admin access to the local network's web server and can manipulate DNS responses can redirect this SSH connection to a device they control.

Impact Analysis

The vulnerability can allow an attacker to redirect a reverse SSH connection to their own device, potentially enabling unauthorized access, data interception, or control over the affected system. This could lead to compromise of confidentiality, integrity, and availability of the system.

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