High severity8.8NVD Advisory· Published Jan 7, 2026· Updated Jun 17, 2026
CVE-2025-61939
CVE-2025-61939
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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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- cpe:2.3:o:columbiaweather:weather_microserver_firmware:*:*:*:*:*:*:*:*Range: <MS_4.1_14142
- Columbia Weather Systems/MicroServerv5Range: 0
Patches
Vulnerability mechanics
References
2- github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-006-01.jsonnvdThird Party Advisory
- www.cisa.gov/news-events/ics-advisories/icsa-26-006-01nvdThird Party AdvisoryUS Government Resource
News mentions
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